Another important discovery is that the PS3 apparently will abandon the standard memory card format and will instead use the same format as the Sony PSP, memory stick duos. This has some positive and negative implications. On the bad side, if PS2 or PS1 owners were thinking of using their older memory cards to transfer game saves to the PS3 (which is backwards compatible with its two predecessors) that won't be possible, at least not in a traditional method.
However, unlike playing PS1 games on the PS2, which required the purchase of older PS1 mem cards to save game data, on the PS3 users will be able to save PS1 or PS2 data directly to a memory stick duo. Furthermore, because memory stick duos easily interface with PCs via USB cable and a device like the PSP, gamers could potentially share game saves with one another for any PlayStation platform over the Internet, which in this editor's humble opinion would be very, very cool. The article also mentions that PS1/PS2 peripherals won't be supported but that it's possible a third party will introduce an adaptor.