As announced earlier today on the XNA Game Studio team blog and on the App Hub forums, there have been a few changes to the Xbox LIVE Indie Game submission policies to give developers more flexibility when submitting their games.  Here is a brief summary of the changes:

• The maximum size for an Xbox LIVE Indie Game submission package (.ccgame) has been raised from 150 MB to 500 MB.
• The maximum size for a game selling for 80 Microsoft points has been raised from 50 MB to 150 MB.
• The maximum number of Xbox LIVE Indie Games that a developer can publish with one App Hub membership has been raised from 10 to 20.

Please visit this forum thread for more detailed information and answers to any questions you might have about these changes.