That's cool if true, given Jonathan Blow's many posts about his frustrations in porting to Linux, particularly the fine grained control you need over sound for that game (play backwards, play at varying time rates). See the long thread here: http://braid-game.com/news/?p=364
Edited: Bought the package and attempted to install the games. Of the five, on Ubuntu 10.10 x64:
Braid: Installer was a .bin which gave me some ELFCLASS64 errors, but the game runs. I just can't figure out how to get it windowed, so it's currently centered between my two monitors.
Cortex: Installer was a 64bit bin, installed OK, but the game gives me an error about a missing file when I run it. Tried to touch the file, no luck.
Machinarium: .tar.gz, installs and runs. Forces primary-monitor only.
Osmos: 64-bit deb, installed fine, plays awesome, forces itself to my left (primary) monitor, couldn't be happier.
Revenge of the Titans: Broken 64-bit deb. The Ubuntu GUI for debs threw up a useless error message. If you manually create /opt/revengeofthetitans/full_length_music/ and then install it with dpkg it works. Game runs, and has three different window size options if you don't want fullscreen.