Safari - or at least, something not unlike it - may be coming to the Windows platform. Swift is a new browser for Windows, based on Apple's WebKit rendering engine.

Swift is in the very earlier stages of development. Practically embryonic, you might even say. The repository was created a mere three weeks ago. And, as the Web Standards Project warns, "it's marked as 1.0pre alpha, and it is very much an alpha: very rough-looking UI, no scrollwheel support, pathetic form controls and I've had reports from colleagues that some folks can't even get it to install."

Nevertheless, Swift looks promising! I recommend keeping a close watch on this project. It could be very helpful to developers who need to ensure that their sites (particularly those with heavy scripting) function across browsers.