While SFIV and RE5 are both multi-platform, Capcom has joined up with Sony for some PlayStation Home specific content.
There's Street Fighter IV and Resident Evil 5 player matching via Home for online play. This will be possible with Resident Evil 5 at launch, but SFIV will be updated after it goes on sale to include this feature.
Resident Evil 5 will be getting a Kijuju-themed lounge in Home and avatar outfits. Street Fighter avatar outfits and items will also go on sale.