As a Media Center MVP, Media Center Extenders are something that I am quite familiar with as I personally have 2 Xboxs with Media Center Extender functionality, in addition to an HP x5400 Extender.
Here's a little tidbit about V1 Media Center Extenders, Xbox 360 (with its built in extender functionality) and Vista from the Windows Vista Product Guide of Vista Beta 2 that was just released earlier today.
On Page 163, the following is stated.
Except for Xbox 360, earlier versions of Windows Media Extenders are not compatible with Windows Vista. However, new Extender devices will be available with the release of Window Vista.
I can't say I'm too thrilled about this. Hopefully, this doesn't affect the upgrade rates of those who adopted Windows XP MCE 2005 and its v1 Extender lineup. That said, with the growth of sales of the Xbox 360, many people will have the opportunity to try out extender functionality now, with MCE 2005, and in the future, with Vista. I'll have more information about this as it becomes available.
What do you think of all this?
2006-05-31 Update: See here for additional information about v1 Extenders and Vista