We didn't mention specific technologies in the main project description for two reasons: 1. We are aiming for a general audience. 2. We haven't made any final decisions about specific frameworks or tools. This project has been through a number of iterations over the past year. About six months ago, we decided to postpone any detailed technical specification and design until we actually know we're going to be able to do the project. Mobile tech just moves too fast to choose specific technologies 9+ months before we start implementation. HP's dithering over WebOS and Adobe's recent announcement about Flash on mobile [http://www.zdnet.com/blog/perlow/exclusive-adobe-ceases-development-on-mobile-browser-flash-refocuses-efforts-on-html5/19226] are two great examples of that. If I had to choose today, it might be PhoneGap, paired with CouchDB to provide the API. But it could be Titanium or Sencha Touch, or a framework I haven't heard of, or one that hasn't been announced yet. We also have some opportunities for collaboration in mind.