Dude, CNet's Erica Ogg just pulled quick one on me! Her headline is "iTunes streamed to your phone? Possibly."
Actually, No Whoa.
What they're talking about is using the excellent, yet non-specific ability of a Slingbox to stream iTunes to an Apple TV, and then using a HD equipped Slingbox Pro to stream Apple TV to your Sling Client-equipped Palm, or Windows Mobile phone. The article speaks of future support, but isn't this possible with the mere addition of a few IR codes?
Ironically, when it comes out, the iPhone's EDGE connection doesn't have legs to support the richest of all Sling video, but audio should be fine. Wait, what am I talking about?! There will be no OS X Sling client unless Steve J. says so.