Not a lot is known about the games so far, but it looks fairly exciting. They're being overseen by the Doctor Who production team, Steven Moffatt overseeing both games' scripts before they're realised. Apparently, one is being written by Gareth Roberts (The man behind episodes such as The Lodger and The Shakesphere Code) which would be great news, as we're all great fans of him here at KN.
The games are both due before the end of the world, and are being developed by Asylum Entertainment, (The developers behind, um, a couple of dodgy Scooby Doo games.) with BBC Worldwide publishing. They feature Matt Smith and Karen Gillian as the Doctor and Amy Pond, while the Cybermen will feature on the Wii game and the Daleks on DS.
However, there are no plans to realise the game outside of the UK at the moment.
Keep with KN for more on these two games.