Just tried this and got the following:
"The following NEW packages will be installed:
gstreamer0.10-plugins-bad{a} minitube
The following packages will be REMOVED:
hplip-cups{u} kaboom{u} libdrm-nouveau1{u} libkephal4a{u} libkwineffects1a{u}
libplasmaclock4b{u} libprocesscore4b{u} libtaskmanager4b{u} libtelepathy-qt4-0{u}
libtidy-0.99-0{u} libweather-ion4a{u}
The following partially installed packages will be configured:
libcairo2 libmozjs10d libsqlite3-0 libvpx1 xulrunner-10.0
0 packages upgraded, 2 newly installed,
11 to remove and 0 not upgraded.
Need to get 2,073 kB of archives. After unpacking 296 kB will be used.
The following packages have unmet dependencies:
gstreamer0.10-plugins-good: Conflicts: gstreamer0.10-plugins-bad (< 0.10.21.2) but 0.10.19-2+b2 is to be installed.
The following actions will resolve these dependencies:
Keep the following packages at their current version:
1) gstreamer0.10-plugins-bad [Not Installed]
2) minitube [Not Installed] "
So, to me, it looks like minitube and the latest gstreamer are completely incompatible. Shame.