Beginning iOS Game Center and Game Kit shows you how to use Game Center and Game Kit to create fun and polished games that use advanced features such as social networking and voice over IP (VoIP). Gam...
Advantagessmall with a cool little clip
Disadvantagesscreenless - but do you need all those extras features?
Advantagessmall, light-weight, sleek design, easy to use, range of features, comes in different colours
Disadvantagesyou do of course have to have iTunes for this to work
AdvantagesSound quality really good! Bluetooth connectivity. Small and light. Portable.