The early 2000s saw a Cambrian Explosion of form factors for mobile devices, and one of the most feature-rich phones of the time was the Danger Hiptop, better known as the T-Mobile Sidekick. [ashe]…
The T-Mobile Sidekick, sold elsewhere as the Danger Hiptop, ran DangerOS, which only loads software signed by Danger or a carrier. Developers used to get a signed key from a web form, but that closed in 2010 and nobody issues keys anymore.…
