Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
It's pretty remarkable that considering Google's fabled use of Linux on thousands of servers and hundreds of desktops that all the desktop applications coming out of the Googleplex, with the solitary exception of the Gmail Notifier for Mac OS X, only run on Windows machines.
At this point in time, Google doesn't seem to want to put out code that would be swiftly opened and hacked upon by hundreds of programmers worldwide. That could be changing, with the presence of Chris DiBona in Google HQ.