The doc states the limitiation to 2 touch points only holds true for lower-end android devices:
Multi-touch capabilities are restricted to the specific target platform and device. Especially on Symbian and lower-end Android devices, there is a maximum of 2 touch points being detectable simultaneously. iPhones and iPod Touches support 5 multiple touch points, and the iPad supports up to 11. Consider this limitation when you design your game. If you require for example 3 touch points, your game is not guaranteed to work across all devices!
You are limited to device restrictions here, we cannot change that.