GDB/MI doesn't work in GUD/GDB

[Nordlöw]

I can't get GDB/MI support in gud in latest Emacs Bzr to work.
Shouldn't this be ready by now? How will my Emacs-GUD-GDB experience
when I get this to work?

When I try using M-x gdb as "gdb -i=mi -f FILE"

I get a window containing

Current directory is ~/pnw/pnware/
~"GNU gdb (GDB) 7.0-ubuntu\n"
~"Copyright (C) 2009 Free Software Foundation, Inc.\n"
~"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/
gpl.html>\n"
~"This is free software: you are free to change and redistribute it.
\n"
~"There is NO WARRANTY, to the extent permitted by law.  Type \"show
copying\"\n"
~"and \"show warranty\" for details.\n"
~"This GDB was configured as \"i486-linux-gnu\".\n"
~"For bug reporting instructions, please see:\n"
~"<http://www.gnu.org/software/gdb/bugs/>...\n"
~"Reading symbols from /home/per/pnw/pnware/t_chash..."
~"done.\n"
(gdb)

but when I do gud-run nothing happens...

Thanks,
Nordlöw