Excerpt: I recently bought the m330 and don't like it all. Samsung has down hill with this phone. The battery doesn't stay charged. You have to have a screen saver on your phone which uses your battery up. It has doesn't have the feature that previous Samsung models have.
Pros: slider, light weight
Cons: battery, doesn't have the feature where it tells you who's calling when you have a blue tooth in your ear. can't turn off the screen saver.