1. It is a more capable mobile Web computer than anything other than the iPhone.
2. It is a very appealing development environment for app creators—and just like on the PC, apps will drive adoption.
3. Most importantly, as an open-source OS, manufacturers don’t have to pay a licensing fee to whoever controls the OS. Given the razor-thin margins in the cell phone business, that alone is reason for manufacturers to embrace Android (with the exception of Nokia, which owns Symbian). But you can see why Motorola might see Android as the key to its recovery.