Hacking the T-Mobile Sidekick, 20 Years Too Late
｢ The Danger Hiptop, better known as the T-Mobile Sidekick, came out in 2002 with a full QWERTY keyboard, AIM and Yahoo Messenger built in, and push notifications, at a time when most phones could barely handle a text message. All of it ran on DangerOS, Danger's own Java-based operating system ｣
