The skyrocketing success of Apple's App Store and the recent launch for Research In Motion's (RIM) App World for BlackBerry is clear proof that people want third-party apps for their mobile phones. Unfortunately, developers with a brilliant idea for the next blockbuster app typically have to decide which platform to choose before they write their first bit of code -- iPhone, BlackBerry, Android, Windows Mobile, etc.
The creators of PhoneGap think it's nonsense that developers have to write the same app in several different programming languages to reach the widest swath of mobile phone customers, so they developed an open source, cross-platorm framework that bridges the gaps among them.