I've installed and tested it, and it indeed killed xmaxima running in the background when doing closechroot.

While testing it, I had an issue that I've encountered sporadically before: with LXDE running, hitting the power button brings up the menu, but then touching either outside or inside the menu nothing happens. The only thing that I can then do is long-press the power button and thus reboot. Going through the same steps again, I couldn't repeat it. I haven't seen this behavior with the initial release of Easy Debian to Extras, but since this problem happens rather rarely for me, that may not mean much. Anyone else having experienced that?

EDIT: Involuntarily I did more testing of the new closechroot and I found that I get the same error people were reporting previously, namely that USB mass storage does not work before rebooting. Actually, it was the first time that I was using USB at all because my WLAN connection was so bad today when I wanted to transfer a big file from my PC to the N900.