My PS3 wishlist as follows:
1 - 65nm process Cell and RSX chips in the PS3.
2 - Skype included in the XMB and usable with the upcoming 2nd gen eyetoy. Yes, I know they have started their own voip client on PSP in the UK but what good is it if you can only use it with other PSP users? Heck, I'd buy an extra PS3 for my family back in North America if Skype was added.
3 - Keyboard + Mouse support for all FPS games (and possibly others).
4 - A no HDD SKU for the PS3. I am upgrading the drive regardless so the included is wasted and simply sits in the PS3's cardboard box. Why not offer a SKU of the PS3 with no HDD for customers like us?
5 - Video editing software would be a fantastic addition to the PS3. With all the horsepower under it's hood the PS3 would make for a fantastic DV movie editor. It also seems like a match made in SONY heaven. Take your SONY DV camera, connect it to your PS3 and edit your movies! The PS3 is after all the multimedia hub of the home (or so it's meant to be).
6 - More codec support! Firmware 1.90 brought the welcome addition of media streaming but SONY is really lacking on the codec support side of things. I want to see at the very least support for Xvid, Divx among others.
Look forward to hearing your wish items! :)