Dominique Hazaël-Massieux has put together a really nice overview of the various W3C specifications that relate to all aspects of mobile web applications – from presentation and media handling to device APIs and app packaging. There are specs here I’d never even heard of before!
Of course its a fast-changing landscape but this is a very handy snapshot of the W3C state-of-the-art for anyone interested in this space. Which seems to be just about everybody at the moment…