Thanks 
True to an extent your right, However all of this functionality has been around in some way and another both on and off windows for a long time. The Slingbox is a great device and I tried one myself, however its additional hardware and I already had my MCE system setup.
But the real key point is this. All of this is one integrated system, sure the mobile and web element are nice, the ability to use the dash on the 360's or the extender functionality is nice if I want to do that. The ability to do multiple tuner recording and playback is nice, or ever the backup facilities of Home Server making me feel secure knowing my MCE server is backed up automatically nightly.
But this is the bit for me which really made me stick with this solution (bear in mind, I've been with Media Center a long time now and have used many MCE machines from 2002 right up to Vista Ultimate including pretty much every itteration of extender along the way.
I tried many other solutions but the one thing which kept me here is the fact everything is integrated. I have one look and feel across the board, no matter if i'm remote, web based, local in my kitchen, frontroom or bedroom. My phone calls come in, they are integrated and look slick.
I show my photos and listen to my music (and even stream it from my zune) and it feels like one flowing experience. I want to monitor the sports results and I have an insanely content rich sports interactive dashboard. I can order movies on demand, watch from my own collection and even burn a backup right from the same familiar interface.
I also have the sense of security knowing my recordings are centrally located with folder level duplication so my kids videos are always safe.
Another feature I didn't mention which I love is the Internet TV functionality, now in addition to the other integrated media experiences I can access many sources of Internet video via Internet TV. Be it watching a new concert or the lastest funny clip on MSN Video, it's right in front of me in the same way everything else is.
In the coming months I'll show you some of the magic which Media Center can really do, We're at channel 10 here. expect us to go a little crazy 