tested with current cvs version (310104). In the launcher dialogbox it's not possible to go from the command entry to the next item with <TAB>, it's only possible to go to the previous item <SHIFT>+<TAB>.
That's the completion combo box 'eating' the TAB. I'm not sure what I can do about it. Except removing the completion functionality ...
Is that how tab is supposed to work? Currently it works differently in the combo module, but can be changed.
Combo functionality was removed, so this 'bug' should be fixed.