I was also getting this (in diablo). I believe it was conflicting with granule in chinook. I just disabled that repository, reinstalled and it worked fine. More detailed response below.

If I ran it in the terminal:
granule: error while loading shared libraries: libhildonmm-1.0.so.1: cannot open shared object files: No such file or directory

Nokia-N800-23-14:~# apt-cache policy gstreamer-tools
gstreamer-tools:
Installed: (none)
Candidate: 0.10.13-0osso13~diablo1
Version table:
0.10.13-0osso13~diablo1 0
500 http://repository.maemo.org diablo/free Packages

Nokia-N800-23-14:~# apt-cache policy granule
granule:
Installed: (none)
Candidate: 1.4.0-7
Version table:
1.4.0-7 0
500 http://repository.maemo.org chinook/free Packages
1.4.0-7 0
500 http://repository.maemo.org diablo/free Packages
1.4.0-2 0
500 http://repository.maemo.org chinook/free Packages
1.4.0-1 0
500 http://repository.maemo.org chinook/free Packages
1.3.0-pre4 0
500 http://repository.maemo.org chinook/free Packages
1.3.0-pre3 0
500 http://repository.maemo.org chinook/free Packages
Nokia-N800-23-14:~# exit

Disabling the chinook/free repository leads to:

Nokia-N800-23-14:~# apt-cache policy granule
granule:
Installed: (none)
Candidate: 1.4.0-7
Version table:
1.4.0-7 0
500 http://repository.maemo.org diablo/free Packages

and it installed (and works) fine.