The Samsung Epic 4G still isn't shipping from Sprint with Gingerbread on board, but that doesn't mean you can't have a try on your own. Build EG22 brings yet another leaked Gingerbread ROM for the Epic, and early word is that it's a fine piece of engineering. It appears that most of the debugging code has been stripped out, which means there's a good chance this will be the final release, and that Android developers won't have to work as hard to clean it all up for those that prefer the custom ROM route. One important thing to know is that there are enough changes in this build that themes and other customizations built for the EF02 leak might not work, but I imagine everyone involved will have that sorted out soon.
There's several different ways to get this one on your Epic, hit the forums and holler at AC adviser Paul627g with questions and for advice -- that man is an Epic hacking machine and will steer you right. If you're the type who would rather wait to get your update pushed from Sprint, it looks like it won't be too much longer now.