I've been playing around with developing mobile apps using GWT. Using Java to output cross platform mobile apps seems like a no brainer. So I expected to find tons of examples, but that is not the case. I made a HTML5 offline web application demo for a recent talk on GWT. But this time I was up to create a real mobile app, something that could be published in an app store.
So I went back to the HTML5 route. There the a GWT third party library gwt-mobile-webkit which provides access to the HTML5 features of WebKit. That includes the W3C specifications W3C Web Database, W3C Web Storage, W3C Geolocation API and Application Cache API. I've only made a small test application using the location API. I've then used WebKit wrapper part of PhoneGap to make a native app for Android and one for the iPhone. That worked fine so far.
But I have to say, everything is kind of clunky, lot's of back and forth between the different project. And testing on the emulators is no joy either. I definitely want to go back to gwt-phonegap, having only one framework for everything could make things easier.
Anybody out there with a better approach?