The Danger Hiptop, also re-branded as the T-Mobile Sidekick, Mobiflip and Sharp Jump, is a GPRS/EDGE/UMTS smartphone that was produced by Danger, Inc. from 2002 to 2010.[2][3] The Hiptop software was designed by Danger, Inc., which was located in Palo Alto, California, and purchased by Microsoft for $500 million in 2008.[4] Danger provided the Hiptop OS software and back-end services for the devic