Ubuntu Geek posted a guide about installing XBMC 10.0 (Dharma) in Ubuntu using PPA

XBMC Media Center is a free cross-platform media player software and entertainment system application framework for Linux, Mac, and Windows. XBMC is capable of playing back and streaming all popular video, audio, and picture formats out-of-the-box.

  Install XBMC 10.0 (Dharma) in Ubuntu using PPA