So XSpace is actually, well, everyone in the social networking space except for Facebook.
And the Red Pill app itself is still a hypothetical, but it's getting closer and it's clear where that data would be helpful now.
Scoble's suggestion that his friends would all have to move before he'd look outside the "walled garden" of Facebook, and Don Dodge's suggestion that Facebook users won't just leave are both missing the point.
Users don't need to make up their minds now, they only have to decide that at some point in the future they might want to spend more time somewhere else. That's where Red Pill and its data come in.
Meantime, Bebo's press release headline ("[...] REVEALS PLANS TO LAUNCH FACEBOOK-COMPATIBLE DEVELOPERS PLATFORM") appears to overreach the actual article content -- namely, that Bebo will "make it easy for Facebook developers to port their applications," not necessarily host Facebook apps directly.
But there seems to be no clear reason why an OpenSocial proxy system could not actually host F8 applications. Except for maybe some terms-of-service issue. All those "fb" abbreviations and tags may have to get ROT13'ed or the like.