It's been for a while! There have been more games involving zombies (since Dead Rising, I would say) in these two last years than in the whole last decade! Flash games, PC games, console games... there are zombies everywhere! :D
If you like zombies, you should read Max Brooks's World War Z! ;)
j-1 on 2009/04/28 23:27:
I remember Pyweek 6, when most games included a Portal reference of some kind :D