In Pictures: Back from the EDGE - a look at the ev...
These days, Apple is justly proud of its App Store, which offers about 650,000 third-party applications that greatly expand the iPhone's functionality. It's interesting to note, however, that the original iPhone had exactly zero third-party apps available at launch -- users could only use the basic apps that came with the phone. Version 2.0 of what was then called iPhone OS introduced new application functionality a year after release.
In Pictures: Back from the EDGE - a look at the evolution of the iPhone