Open sourcing Google's apps is not a solution to Android's core problems though. Not every part of the OS that needs to be updated can be moved into open sourced apps.
Also, open sourcing the apps takes away any leverage Google has to recoup the costs of developing Android.
All the apps were open source in the first place. Google Music, Books, Search, the Phone Dialer, the contacts, the SMS app, Google Talk, all of them used to be open source.
