You can get a free Sidekick 2008 from LetsTalk.com when you sign up for a new two-year contract with T-Mobile. Or, if you need to extend your contract you can get one for $49. T-Mobile is selling the device directly for $99, so you can save a little moolah with this deal.
T-Mobile Sidekick 2008 [LetsTalk.com via dealnews]