In case you didn’t know, even Sidekicks have their own App Store, called the Sidekick Download Catalog, that just got updated with Facebook and Twitter apps. The software is compatible with Sidekick LX, Sidekick Slide and the 2008 Sidekick.
The Facebook app is available for free, while the Twitter software will cost you $2 a month. Sidekick 2009 comes with these apps on board.
[via mobilewhack]