Android 2.1 Eclair (API level 7)
Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.
You can add widgets to the home screen. This allows you to have more flexibility and to see information at a glance, without going into the app.
With a search browser application you can surf the internet from your device.
It can be updated over the air (OTA) w/o connecting to a computer
All your contacts and calendar dates are synced over-the-air.
Free navigation software with free map data and updates included, no need to buy an dedicated navigation device.
You can use your voice to control key functions of the device and you can easily access your device without pushing any button.