This a great extension and I have been eagerly waiting for its update to tb 2.0b.
Having said that...
There seems to be some conflict with Quickfile https://addons.mozilla.org/en-US/thunderbird/addon/348
When both extensions are enabled: - some menus' text disappear (File does not appear, nor its sub-menus) - shortcuts keys are changed (doing CTRL-A instead of selecting all deletes the current message; other shortcuts (R) do the same deletion).
I'm using several IMAP accounts, and this behaviour happens on them.
GmailUI is 0.6 QuickFile is 0.17.0.0011 Thunderbird 2.0b2 on Windows XP
Again thanks for a great extension
This review is for a previous version of the add-on (0.6).