I was thinking the same thing. I am not sure these are all launch titles, but they appear to all be launch window games:
(Racing)
PGR3
Test Drive
NFS
Full Auto
(FPS)
PDZ
CoD2
Quake 4
Condemned
GR3
(RPG)
Oblivion
FFXI
(Adventure/Platform)
Kameo
King Kong
(Sports)
NBA2K6
NBA Live
Madden NFL Football
Amped
Top Spin
FIFA
Out of those I am keeping my eye on Kameo, Oblivion, PGR3, PDZ, CoD2, and the sports titles as possibly "Good to Great" games. i.e. stuff 8.5 in a review or better. PDZ may fail, but it also may have some KILLER gameplay. CoD2 and Oblivion appear to be on a good pace for 8.5+ titles. Kameo has turned into one of my favorite titles, and PGR3 is a just a killer game IMO (as long as it plays well, which early indications from today is that it plays great).
GR3, Quake 4, Condemned, Test Drive, and maybe Kong are wild cards. Quake 4 could be very good (or more Doom 3 action). Kong could be a good upgraded port. Condemned and Test Drive (MMO Racer?) could be really good or really bad.
A poor GR3 showing will have some hard competition. Overall it looks like the Xbox 360 launch is going to have a bit of everything. Definately one of the best launches I have ever seen.