The Motorola Droid (stylized as DROID; GSM/UMTS version: Motorola Milestone) is an Internet and multimedia enabled smartphone designed by Motorola, which runs Google's Android operating system. The Droid had been publicized under the codenames Sholes and Tao and the model number A855. In Latin America and Europe, the model number is A853 (Milestone), and in Mexico, the model number is A854 (Motoroi). Due to the ambiguity with newer phones with similar names, it is also commonly known as the DROID 1 or the OG DROID (where OG is short for OriGinal or Original Gangster or Old school Gangster). The brand name Droid is a trademark of Lucasfilm licensed to Verizon Wireless.
Features of the phone include Wi-Fi networking, a 5-megapixel low light capable digital camera, a standard 3.5 mm headphone jack, interchangeable battery, 3.7-inch 854 x 480 touchscreen display. It also includes microSDHC support with bundled 16 GB card, free turn-by-turn navigation from Google Maps, sliding QWERTY keyboard, and Texas Instruments OMAP 3430 processor. The Motorola Droid runs Android version 2.2.
The phone does not, however, run the re-branded Motoblur interface for Android, instead providing the Google Experience skin and application stack.
The Droid has a hearing aid compatibility (hac) rating of M3/T3. The phone was the first to ship with free Google Maps Navigation (beta) installed.

#from http://en.wikipedia.org