I own a psp =D
I suggest purchasing the psp, its my favorite handheld.
You have music
-videos
-internet
-skype calls
-radio
-camera
-GPS
-pictures
-RSS
-Location free player
and lots more features.
www.store.playstation.com
There you go, you can purchase some ps1 games to your psp and play them on the go, or just buy it on the ps3, and copy to MS for free.
The psp has great titles as well. Not to mention the graphics are on par with the ps2.
2008 end of year predictions:
PS3: 22M
360: 25M
wii: 40M







