Since all the second-tier phone OS are saying "write HTML apps for us", with some app manifest munging might the Firefox app work on them too? At what point does a Web app become a modern HTML5 web site, or is it vice versa? :)
The forthcoming, rebooted Wikipedia app for Firefox, geared at developing and emerging markets, could in principle be munged to work on other platforms, like the Chrome Web Store.
The HTML5 < --- > web app conversion cuts both ways.
I believe Jon, and maybe others on the core mobile web team, is examining LocalStorage / AppCache enhancements for the mdot web experience.
Jon and I are going to talk tradeoffs regarding shoehorning mdot into the app for Firefox versus starting fresh, looping Tomasz Finc and Dan Foy in for prioritization.