Hi all.
I triplechecked status about libcelt, and I realized mumble package hasn't dependency for it, but mumble really needs libcelt. (I claim I fixed it, but it isn't fixed for repository)

I pushed version 1.2.2-5-maemo2 to extras-devel and I think it is now installable. This version is same than version on current Ubuntu (they call it 1.2.2-4).

Using:
Default GUI is 'Stylus'.
(It is chosen via /usr/bin/mumble.sh which is script and adds 'GTK2_RC_FILES=')

Issues:
A)
Config->Settings will crash.
(I tried change some defaults, so it might be my fault)

B)
If you are connected to server and mumble is not your active application, you will get 'yellow notifications' when somebody send chat-message via mumble.
(Contain of this notification is crap)

C)
If Mumble is running (even not active) you can't access to clock or profile/volume/etc-menu. Dashboard button is still working.

(Could you find more issues?)

When Mumble version 1.2.3 is released I will try again. And if these issues are still valid I will post them to upstream bug-tracker.