I been using the same technique for the hobby multiplayer game (http://softpoetry.com/projects/burgers/) I've been working on. Got it running using the same stack on iOS/Android and PCs, so it's a good thing to note that it's not just for web browsers.
Yes good point, the first prototype of an older game ran on mac/windows/linux/android/iOS and browser using impact.js, phonegap, titanium etc. All the usual stuff still obviously works too :)
