Some of you probably already saw this; but I thought it looked interesting for a broad
audience. The version SmartGWT that we use will render on iOS and Android (although our
application would not) but these widgets give a more mobile look-n-feel.
http://blog.isomorphic.com/announcing-smartgwt-mobile-beta/
And the showcase:
http://smartgwt-mobile.smartclient.com/
Too bad the GSoC slots are already closed ;-)