"Doctor Who: Comic Relief Special"

I literally just found out that there will be a 8-minute "Doctor Who" episode that will appear in Comic Relief 2011. The "Who" short will be split into two mini episodes at a running of 4-minutes each. Part 1 is called "Space" and part 2 is called "Time". As Steven Moffat said, "they’re Space & Time." He's not gave us any info really on what the episodes are gonna be about. Though he did say this, "there’s a moment with two Amy Ponds in it. If you’re a red-blooded male surely that’s enough! You’ve got Amy Pond flirting with herself."
He finally said this, “It’s everybody’s personal fantasy! I’m really, really pleased with them. I think they’re really good, really very funny. It’s Matt, Karen and Arthur, and there isn’t a guest character. It’s just the three of them. A moment of life aboard the TARDIS. But obviously life about the TARDIS instantly gets you into terrible jeopardy, and all of causality is threatened. As I’m sure it is every day when they get up and have their coffee…”