PC gamers will apparently get the chance to play Insanely Twisted Shadow Planet. The game is currently an XBLA exclusive, but the ESRB outed the port when they added a rating for PC. A story was posted on Extra Guy and, when the story was brought to the developer's attention via the game's twitter, they responded with:
"hmmmmmm... ;)". (Why yes, that is a winky face emoticon.)
While that's not a direct confirmation, the answer isn't exactly subtle. While there's currently no word on when ITSP will be coming to PC, I'm sure we'll be hearing more about it very soon.