Talk about messaging phones and you'll inevitably get to the Sidekick. T-Mobile's screen-flipping feature-phone has a history of offering smartphone style push email, web access and social networking with a straightforward UI; now there's a new addition to the family tree, in the shape of the Sidekick LX 2009. The simple name-change over last year's model hides a number of improvements, however, not least a stunning display, 3G and GPS. Are they enough to maintain the Sidekick reputation, or has the feature-phone crown been snatched away? SlashGear set to finding out.