Last Updated: October 3rd, 2011
The original DROID blew everyone away. It saved Motorola from almost certain bankruptcy, breathed new life into Verizon's smartphone catalog, and made Android a desirable mobile operating system rather than a cheap alternative to iOS. In short, it ushered in a new age of Android devices.
A lot had changed by the time its successor, the DROID 2, launched. The latest Android handsets had larger displays, better designs, and (perhaps most importantly) less buggy custom UIs.
Last Updated: July 24th, 2011
I'm fairly certain that I don't need to tell anyone about the impact the original DROID had on Google's mobile OS. It almost single-handedly brought Android to the masses, saved Motorola from bankruptcy, and made Verizon's then-stale smartphone line-up interesting once more.
Then there was the DROID 2. While it was by no means a bad phone, it would be difficult to argue that it carried the same significance as its predecessor - not to mention its locked bootloader and the godawful addition of Ninjablur.