PhoneGap - Cross platform mobile framework
via phonegap.com
Build native mobile phone apps to iPhone, Android and Blackberry with PhoneGap open framework (MIT Open License) using just html and java. Phone Gap also has a simulator and can control Geo Location, Vibration, accelerometer and sound native device features. There a few examples listed on there web site of native apps built with phonegap, mostly iPhone /app store apps.
This is a pretty cool framework anyone can program with javascript and html and it supports so far 3 platforms. Best of all it is open source.
It a very nice development tool, worth the time to dig deeper and work with.
more info @ http://www.phonegap.com/