Joining Thumbjam, Sonosaurus' DrumJam has been updated to support Audiobus! iPhone 5 screens are also now supported in the new version.
What's new in 1.1:
Introducing Audiobus support: Now you can play audio from DrumJam directly into other Audiobus-compatible apps! See http://audiob.us for more information.
- Optimized for iPhone 5 and new iPod touch
- Korg WIST (wireless sync-start) support
- Fixed MIDI sync drift issues
Some DrumJam issues with connecting to Audiobus have been mentioned in the comments for Thumbjam, but Sonosaurus has been quick to respond and are investigating it now. These issues might be isolated to iPad 2s running iOS 6.0.1.