In the upcoming PSM magazine, there is a feature article about the PS3. They say they received some 'new' information from their development sources who wish to remain anonnymous! No more memory cards, HDD is not for games and more detailed in this article!
#1 No More Memory Cards
We've received a lot of letters asking about how PS2 will be backwards compatible with PS2 and the original Playstation if it doesn't have memory card slot. Well, we have an answer, and it's both good and bad. First, the bad news: All of those old memory cards you have won't be usable with PS3. Okay then, wha's the solution? Sony has actually decided to only use Memory Stick Duo cards(the same format PSP uses) for PS3 save data. However, if you play a PS1 or PS2 game on PS3, the system will treat the Memory Stick like it's a normal memory card. This is different from the PS2, which requires you to use a PS1 memory card for PS1 saves. What this means is that you won't be able to use any of your old saves if you play PS1/PS2 games on PS3(wonder if a DexDrive will work...). But there's an upshot to all this: Downloading and sharing saves via PC for all three Playstations and PSP(hint, hint) will be easy as pie.
#2 Peripherals Passed Up
PS3 won't have old style memory card slots, and we can confirm that it won't support PS1/PS2 peripherals that used the controller port. You will be able to play PS1/PS2 games just fine using the new PS3 controller (bizarre as it looks), but things such as dance pads and third-party controllers won't be officially supported. Of course, it's highly likely some PS2-to-USB adaptor will be made(there's already one for the PC) allowing for such a thing. The question, then, is when.
#3 The Specs Aren't Set
Sony revealed some impressive PS3 tech specs at E3, but they apparently weren't set in stone. Developers have begun to tell us about actual improvements being made to the system's specifications, including more system memory and other low-level upgrades that we won't physically notice, but are making the people producing the games simply giddy.
#4 The HDD Won't Be For Games
There were plenty of moans heard when Sony started talking about an add-on hard disk drive for th PS3. We all know how well the PS2 HDD did. Still, there will be a micro HDD released for PS3 at some point in time. The first capacity being pitched is 80 gigabytes, but developers are being told it won't be for use with games. Instead, Sony is planning to use it as pure storage; you'll do things like put downloaded movies on it, copy MP3s to it, and store your digital photos on it. Then, using the PS3's network hub capability, be able to watch/listen to it all on any capable device hooked up to your home network, like a PC, PSP or even another PS3.
#5 The PSP As A Remote
A lot of folks were left scratching their heads after Sony talked about using the PSP as a emote for the PS3. Well, here's how it works at present: Even if your PS3 is in sleep mode, you will be able to access it via a PSP using Wi-Fi. You can then manage media stored on it, control movie playback from another room, or simply turn it on. Whee!
#6 There's A TiVo-like Add-on
Plans call for PS3 to eventually receive a USB video input box that will make it capable of recording video and television programming to the optional micro HDD. In other words, TiVo. Sony is also making a lot of behind-the-scenes noise about being able to go on trips and download shows you've missed from your PS3 to your PSP -- over the internet. We imagine using a USB cable would work just fine, too.
#7 Most games will be 720p
Although many PS3 games will feature 1080i and 1080p high-definition modes, a majority of developers are using the 720p standard as their target resolution. This is great news because the majority of HDTV's out there don't support 1080p yet, and the ones that do are hella expensive. It's pretty, though.
#8 Speed OR Quality: It's Your Call
It's something PC gamers have been able to do for years: Run their games at a lower resolution in order to speed them up. As it stands, Sony is leaving the door open for developers to offer players the ability to make their games run faster and smoother by using lower resolutions like 480p(progressive) or 480i(the standard egular TVs use). Sony obviously wouldn't want to abandon the majority of gamers who have non-HDTVs do by forcing all games to run at 720p. It's nice to hear that HD-less folks will get a little speed (can't read) from the lower resolutions, but if you're like us, it's all about resolution, baby
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-No habrán Memory cards, y tendremos que botar las nuestras..pero nuestros juegos salvados podrán estar en una PS3, si pasamos los juegos salvados a la pc y los metemos en una memory stick duo..como se hace con PSP

-no se podrán utilizar nuestros controles de PSX y/o ps2

-Todavía las especificaciones finales de PS3 no son las reales que tendrá.
-El disco duro no será para videojuegos (recordemos que el último developver kits tenía incorporado un disco duro) sino que se utilizará para desde PSP, o desde PS3, o desde el PC, meter fotos, mp3's, videos, y demás tonterías que queramos para oir y ver todo esto.
-La PSP servira como "mando", pero no malinterpreten esto, lo que hará la PSP es prenderla a larga distancia con el WI-FI que tiene, reproducir así mismo música, videos y demás con la PSP.
-Podremos con la PS3 grabar programas de televisión y así mismo pasarla a nuestra PSP, o dejarla grabando y almacenarla en el disco duro.
-La mayoría de los videojuegos serán 720p..qué quiere decir esto?, que no necesitaremos un televisor dealta definición para "verlos correctamente" ..no solo esto..hay más. Por ahora las empresas desarrolladoras de videojuegos están haciendo en su mayoría videojuegos en este formato que lo soportan todos los televisores, existe otro formato que es para televisores de alta definición, y uno incluso superior a este que POCOS televisores de alta definición tienen, y que cuestan una barbaridad. Además de esto, se está hablando sobre que los videojuegos en playstation 3 podremos verlos en diferentes resoluciones, es decir que podremos aumentar la resolución hasta donde los televisores de alta definición nos lo permitan, 1080i, y también, si NO QUEREMOS RALENTIZACIONES O BAJADAS DE FRAME RATE, ya para cuando se esté explotando la consola, podemos bajar la resolución del juego y lo veremos fluído [color=red] esto espero que lo hagan bien, porque puede que metan la pata con esto y al final todos los videojuegos con máxima resolución (que es como los jugaré) se les baje el frame rate porque no supieron programarlo[/color]. Es decir, tendremos la posibilidad de jugar como en una computadora, en ese sentido..pero dado que todas las PS3 tendrán las mismas características de hardware, esto no influye mucho pienso yo.