Plex is only developed by one guy who left Team-XBMC and the XBMC project to start Plex, all other developers stayed with the original XBMC project. With the exception of the sparkle auto updater (which Plex implemented only last week) XBMC has all the features and functions of Plex, and all skins that work in Plex where all designed for XBMC (not Plex) and thus just as good if not better in XBMC, (Plex have not made any changes to the skinning engine, however Team-XBMC have updated the skinning engine in XBMC since Plex forked its code from XBMC). Plex is only a software fork of XBMC for Mac (look up Ãoesoftware forkà on wikipedia for its meaning), XBMC is the original, they are two separate project worked by two separate development teams, some code copying between the project does take place though,(Boxee is another fork of XBMC that is also available for the Mac). Short story is that Elan Fieldgold, who then as a member of Team-XBMC was the one who originally started porting XBMC to Mac OS X, he then decided to leave Team-XBMC (due to reasons I will not go into here) and go out on his own and start a his own new project based on XBMC for Mac. Plex was never formally named ÃoeOSXBMCÃ, it was only referred to as OSXBMC because Elan previously had a blog on osxbmc.com in which he posted news of the progress on the porting development. I say support the original XBMC.