"Although disappointingly void of 3G connectivity, the O2 XDA Mini S performs an admirable balancing act with features on one side of the bar and size on the other. Its first-rate thumbboard joins a decent set of applications to render document management a pleasant experience, while comprehensive connectivity and excellent battery life will keep even power users connected and ticking all day long. Granted, its performance is modest and memory is limited, but neither impact the execution of common productivity tasks measurably.

What's positive:
First-rate thumbboard; good battery life; compact size

What's negative:
Mediocre one-handed navigation; lacks 3G; limited memory"