What's Google announcing tomorrow?

ZOMG, Google's going to announce ... something ... tomorrow at its campus in Mountain View, Calif. Question is, what? The invitation [via Giz] points to "unveiling a couple of cool new mobile features." Let's run down some of the ideas we've thrown around here in the office:

• Gingerbread (Android 3.0): Very unlikely.
• Some sort of interim version between Froyo and Gingerbread: Possible, but also not likely.
• New Google apps, along the lines of Google Goggles or Maps: More than likely.
• The Android Market web interface Google showed off at its IO dev conference in May: Geez, we hope so.
• Music download and sync service: That'd be another "PLEASE LET IT HAPPEN!"
• When your phone is schedule to get Froyo: Not gonna happen.

Have your own idea? Head into the forums and give us a shout.