please i would like you to tell me the differences between android 2.2 and android 2.3, especially in relation to performance in devices! grateful
Easy: 2.3 adds better API for GPU acceleration and optimization. Cortex A8 based phones benefit from this greatly.
Most phones that shipped with 2.3 are hella fast (Nexus S).
Basically it's a more polished 2.2. The big update would be 2.3 which radically changes the entire GUI and will reportedly have great API.