Jon's announced the first release of the PC version of Braid (he's doing several releases with different distributors). This one is with Stardock, whom you may have heard of from their forward-looking anti-DRM stance. Initially it was announced at $20, but Jon dropped the price to $15 following grumblings on the web. Note the DRM stance:
Where possible, the game will be released without DRM. Some online publishers include their own DRM as a matter of policy, and of those guys, I am only signing with the ones that have light and non-intrusive DRM. My goal is to give people a reasonable choice about where to get the game, and if they don’t like someone’s DRM or someone else’s launcher client, they can get it from whoever they like most.
I’m not some kind of weird platform loyalist. The PC is not some sports team that is playing the Xbox 360 for the World Cup.