Q: How to install latest XBMC on Debian?
A: Just run “apt-get install xbmc”
The package is well tested on amd64, i386 and armhf, and it is now built on powerpc and armel, too. If you would like to see your favorite architecture running XBMC, please check the build logs and submit a patch fixing the build to the BTS.
update: XBMC 13 Gotham replaced Frodo in Debian, but you can still install it from snapshot.debian.org. For details see the post about Gotham.