When replying with quoted text in the Gmail.apk from the leaked 2.2 the quoted text is all garbled the fix is to replace the gmail.apk with the one from the FRF91(you can find this in Rom Manager).
This is what the garbled quoted text looks like
Steps to ensure no force closes
1. Stop all Syncing(settings-accounts&sync)
2. Clear all Data and Force Stop from Gmail(settings-applications-manage-all)
3. rename Gmail.apk to Gmail.apk.bak
4. push FRF91 Gmail.apk
5. chmod the new Gmail.apk 644
6. reboot
This is what the garbled quoted text looks like
Steps to ensure no force closes
1. Stop all Syncing(settings-accounts&sync)
2. Clear all Data and Force Stop from Gmail(settings-applications-manage-all)
3. rename Gmail.apk to Gmail.apk.bak
4. push FRF91 Gmail.apk
5. chmod the new Gmail.apk 644
6. reboot