Android OS Version and Device

First Android device ,

                                             HTC Dream (T-Mobile G1)

First Android device with Eclair OS(2.0)
                                                    
                                               Motorola Droid

First Android device with Froyo OS(2.2)
                                                  
                                                Motorola Droid 2

                                

First Android device with Gingerbread OS(2.3)

                                                   Samsung Google Nexus S

Number of android device activation reached  500,000 per day
 

List of android OS ,

Version	API
4.0 Ice Cream Sandwich	-
3.1  Honeycomb	12
3.0  Honeycomb	11
2.3.3  & 2.3.4 Gingerbread	10
2.3  &  2.3.2  Gingerbread	9
2.2.x Froyo	8
Second Generation[Droid]
2.0.x/2.1.x Eclair	7
First Generation
1.6 Donut	4
1.5 Cupcake	3
1.1	2
1.0	1