JAW released this a couple weeks ago, didn't see it mentioned here:

HD gameplay on PS3:
http://blog.us.playstation.com/2011/09/15/debut-trailer-oddworld-strangers-wrath-hd-for-ps3/

I seem to recall someone at JAW saying PC HD patch would follow a couple months behind the PS3 port, though I can't find this link anymore.

Latest info is that there'll be a PC patch around March:

http://n4g.com/news/912170/oddworld-strangers-wrath-hd-coming-to-the-pc-in-2-3-months-will-use-a-new-engine

I just hope that this also works with the GOG release.

I just finished reading
http://www.eurogamer.net/articles/digitalfoundry-the-making-of-oddworld-strangers-wrath-hd

and i know where i'm gonna spent my money next ^^

I got this on PS3. I haven't fully downloaded it yet, but I'm very excited to play it soon!