Yeah...

If I'm not mistaken, at this point, 100% of the Macs that legally support Front Row have BT!

And 100% of the future ones will, almost certainly, too, since it's now standard on every Mac Mini, iBook (and presumably on all future MacBooks), iMac, and MBP, i.e. every Mac except the PM. So it's certainly now an available option. I'd guess the remote control Apple uses would be significantly less expensive than a BT solution, but then you can offset that with the reduced cost from not needing an IR sensor in the computer....