Pokki is an application platform for creating desktop applications using HTML5, CSS3 and JavaScript. Pokki uses Chromium internally, meaning layout and rendering is powered by WebKit and JavaScript is powered by V8 - giving you the latest and greatest of HTML5.
Focus your time on the browsers/platforms the majority of users are using rather building for the newest and letting the rest settle. IMO, however, building for the newest promotes innovation and encourage users to upgrade.
Discover Ruby, learn lessons and solve problems, in your browser! Work your way through guided lessons and try your hand at problems as you move along the path to mastery.
Magic Lantern is an open platform for developing enhancements to the amazing Canon 5D Mark II and 550D/T2i digital SLRs. These cameras are "game changing" for independent film makers: