From Gamespot.com

Scroll down a bit, and you'll find this:

Rumor #3: A game based on the hit television show 24 is well into development in the UK.

Source: British industry site Eurogamer.

The official story: Sony Computer Entertainment America reps declined to comment.

What we heard: Word first began to spread about a game adaptation of 24 last February, when actress Elisha Cuthbert mentioned it during a BBC radio interview. Further evidence of the game's existence surfaced when it was listed on the Official UK PlayStation 2 Magazine's 100 Most Wanted Games of 2005 list. Now, Eurogamer claims to have received inside information that the game is being developed at Sony's Cambridge studio, the shop behind Ghost Hunter and Primal. Unfortunately, that's about all they know, so details on the 24 game remain scarce--and Sony isn't talking for the moment. Let's just hope it's not another Alias.

Bogus or not bogus?: Not bogus.

Hope that helps.