From crash.net:
Out
Riders:
Max Biaggi
Alex Barros
Troy Bayliss
Ruben Xaus
Roberto Rolfo
Shane Byrne
Franco Battaini
Carlos Checa (but expected to sign for Tech 3 Yamaha)
Teams:
Honda Pons
Title sponsors:
Telefonica Movistar
Gauloises
Machines:
Proton KR
KTM V4 engine (unless used by WCM)
Blata (in name only)
One less Honda RC211V
In
Riders:
Dani Pedrosa
Chris Vermeulen
Casey Stoner
Randy de Puniet
Jose Luis Cardoso
Jason Perez
Jeremy McWilliams
Teams:
Honda LCR
Title sponsors:
None
Machines:
KR211V
Bimota (exact role with WCM currently unknown)