Haha, I read about that too.
I always expected they'd do it.
Though, a new Ipod is set to release at the same time, which may also have wireless capabilites, as anything at this point could happen.
Since Windows Media Player uses the avanced sound system, SRS WOW and TruBass, I'd be very surprised if their portable Media player also didn't support this, which would make for great sound features!
The only thing to be bothered about, is battery life then as you know it'd have no problems playing MP3/WMA, and probably Windows and standard video formats if it could play video.
Only time will tell.