@JoshRoss:

I agree and it's worth saying that PhoneGap lets you do things you can't do in the browser. It's not simply giving you a browser without chrome, but access to the devices hardware and storage capabilities, also stuff like arbitrary networking support (sockets) can be done. It's kind of like the middle between web development and full native development.

It's a lot like WinRT/WinJS in this manner, although what I've read about it (admittedly, not much), WinRT provides an entirely different rendering API using a different XML-based markup language while PhoneGap uses HTML5 and just fills in the gaps in the JavaScript API to allow for more kinds of apps. So it's like a thin layer of capabilities on top of normal web stuff.