The T-Mobile Sidekick LX is a mobile slider phone originally released in October 2007, but updated several times since. The latest Sidekick LX model is thinner and lighter than previous Sidekicks, but it boasts a larger 3.2” display with an improved 854×480 resolution; a well-spaced keyboard with easy-access keys for quickly flipping through Yahoo, AIM, and MSN conversations; and an improved interface with a rotating wheel, a cursor pad, and four action buttons.