Ok, firstly - this will not impact 2009 for Sony. If devs are moving away from PS3 development, then it is recent, so it will affect the library 2 years from now, in 2011. The only threat Sony has for 2009 is canned/cancelled games or studios shutting down with PS3 games in development.
That said, the marketshare conquers all. It is true that a few studios are rethinking their game plan and who to spend their limited funds developing for. Yet, MS is mistaken if they think that they are shifting to another HD system. THe bulk of those devs who are leaving PS3 projects behind are opting for the cheaper development with the Wii.







