3. Twitter Peek

3. Twitter Peek

Twitter Peek
$200 (with wireless lifetime service)

With Twitter available on so many smartphones, you'd better make a dedicated mobile Twitter device good. This isn't. Its shortcomings are legion. It doesn't display full 140-character messages on the home screen, and there's no way to include multiple Twitter accounts or even get Tweets from one account if you power the device off and turn it back on.