What's on tap for tonight's Zune launch?

Word is Microsoft is doing another "Searchification"-like announcement this week -- this time around its new line of Zune digital-media players.

Besides the new Zunes ("Scorpio" hard-drive and "Draco" flash-based units), Microsoft is expected to unveil a new beta community site for Zunes, an enhanced method of discovering new music and a line of Microsoft-developed accessories (perhaps an FM transmitter and dock?). A new online Zune store, which is more tightly integrated with the Xbox Live Marketplace, also might be part of this evening's rollout, sources said.

Microsoft officials aren't commenting on what is on tap. But the key message, tipsters say, is that Microsoft is going to be in this market for the long-haul. Just as the case with the Xbox, Microsoft isn't going to abandon the Zune market just because it won't turn a profit for a number of years -- if ever.

Do you think Microsoft is taking the right course in not ceding the digital-media-player market to Apple? Should there be a self-imposed time and/or investment limit as Microsoft tries and tries again to get the Zune right?

Update: Looks like the embargoes were lifted at 10 p.m. EST. Three new models; no more brown; a new social-networking-oriented community site; and less restrictive song-sharing are among what was announced officially. For more, see The Hollywood Reporter's coverage of the Zune unveiling.