Should I abandon Java and use phonegap... or both?!

Thanks to a recommendation via twitter from @Substitute79 (thanks very much!), I have had a quick look at http://www.phonegap.com/

Looks like at first glance that you can still use Eclipse but use HTML/Javascript/CSS etc... to produce applications... interesting... I think I will be spending some time with this along with the Java route. My findings, as ever, will follow!