Sling Media broke Mac users' hearts a few weeks ago when they announced that the Mac version of SlingPlayer, the software used to interface with the company's place shifting Slingbox, would be delayed until around September. However, they did mention that they would launch a a private beta in July; the time is nigh, dear friends. Sling Media is opening up a limited beta and is encouraging its Mac users to sign up. It looks like you'll have to sign an NDA if you want in on the action, so if you're not comfortable with that, best move along.
The application will be open for the next two weeks, closing on July 26, and you'll only hear back from Sling if they select you—it's like Prom all over again. Users will be expected to keep Sling informed of the SlingPlayer's performance and other odds and ends that Sling demands.