The new AppleTV Launcher 2.0 with "Multifinder" has been released.
Fixes failure to get into the frontscreen when launching Boxee.
It's a manual install using ssh/wget for now. Once we get more feedback, we will enable GUI updating Launcher 0.8 to Launcher 2.0 and update atvusb-creator/atv-win.
This version replaces booting into the standard Finder.app (frontrow) with a new Multifinder that handles application switching between Boxee and Frontrow. The only side effect is going back to Frontrow takes longer than previous as Frontrow is starting up from scratch.
How to Install:
ssh into your appletv.
sudo sh MultiFinderAllInOne-0.4.run
answer Y to the last question.
EDIT: changed link to point to new version.