While playing 1v100 live (which has too much of a speed element to make winning from the crowd a likely event, even if you know all the answers), I was delighted to see that the prize was Carcassonne. It's presumably for sale as a small download game (probably for $5-10).
Developing a Euro for XBox (or the MSN network) would be relatively easy, and makes a nice bonus revenue stream for Rio Grande. (And some games on BSW would be vastly improved ... Settlers really demands a voice chat when playing).
I imagine there must be other RGG games on XBox live, but probably only the most widely known and accessible. I doubt we'll be seeing a Puerto Rico any time soon ... but, who knows?
I should also mention that the guys from Penny Arcade were funny co-hosts... 1v100 live has too many commercials but at least the "Host interruptions" improved.