With a battery that offers 20% to 30% less capacity than the average smartphone cell, battery life for the Spiral 2 is not what most handset users are accustomed to. The device has 11 working modules at present, a number Google expects to see hit as high as 30 by the end of the year. There will be a module offering an improved camera and another one featuring 4G LTE connectivity.
The Spiral 2 will be offered in Puerto Rico later this year where it has the advantage of being a small market, and is connected to the U.S. This will allow Google to work with the FCC on the project before it is widely launched. There is already talk of a Spiral 3 which will have a longer lasting battery and 4G LTE connectivity pre-installed.
Google has released a clever little video showing how easy it is to turn your phone into a higher spec'd model by snapping in modular parts. The video also shows how a cracked display can be easily replaced by sliding in a new one.
source: Google via AndroidandMe