This has been requested 2 years ago but I'll bring it up again ...
Would it be possible to include purge instead of just de-install? Some apps leave a mess behind them with normal de-install.
And is it possible to see apps that have been installed but later de-installed? I'd like to clean up a little but I don't remember which apps I installed some time ago ...

Edit: OK, just found a nice one-liner for dpkg on "Free Up Rootfs Space" in "Community". Would be nice to have that in FAM but I'm happy with X-Term already. This community is awesome!