How many teams are there in 2010 moto GP?

There are 10 teams this year in the 800cc class of Moto GP. These are:

Ducati Marlboro

Fiat Yamaha

Interwetten Honda

LCR Honda

Monster Yamaha Tech 3

Paginas Amarillas Aspar

Pramac Ducati

Repsol Honda

Rizla Suzuki

San Carlo Honda