In 2008, Google and T-Mobile USA unveiled the T-Mobile G1, the first cellphone to feature the Android OS.
The G1 featured version 1.6 (Donut) of the Android mobile operating system. It went on sale the next month, priced at $179 for a two-year contract.
Learn more at http://www.gsmarena.com/t_mobile_g1-2533.php.
In 1997, IBM announced the IBM WorkPad handheld computer.
Learn more at http://news.cnet.com/2100-1001-203500.html.