It was originally stated that Counter-Strike: Global Offensive's beta would start in October....
[Insert Valve-time joke here.]
The game's Twitter has updated counter-terrorists everywhere that the beta will launch on November 30th.
[Insert second Valve-time joke here.]
The beta will allow gamers to work out bugs and test balancing on de_Dust and de_Dust2. The full game is still expected for a complete launch in early 2012.