Yes.

It's worth the money if you're truly going to have down time that you need entertainment for. It's not a home setup replacement, but it's great for on the go.
I got: Twisted Metal, Head On
Wipeout, Pure
NFS, Rivals and a bunch of movies. Actually I was glad I had my PSP because my computer crashed a while back and I was still good on MP3's because I had nearly a gig of music there.

All in all it's pretty cool.