<p><pre><code> I was surprised to notice no-one had
yet implemented web based touch and
gesture recognition (for mobiles)
to this degree
</code></pre>
iGesture is a jQuery plugin. It was discussed here on HN a while back, it extends work done on another library called jgesture:<p><a href="https://github.com/raganwald/iGesture" rel="nofollow">https://github.com/raganwald/iGesture</a><p>(This is blatant huffery and puffery, of course!)
Android has a gesture recognition API in 2.2, implemented by one of the creators of the $1 recognition algorithm (the one implemented in the article).<p>The creators of 'one-dollar' released the next generation of the algorithm, the $N multistroke algorithm, and here's an implementation of it in javascript: <a href="http://depts.washington.edu/aimgroup/proj/dollar/ndollar.html" rel="nofollow">http://depts.washington.edu/aimgroup/proj/dollar/ndollar.htm...</a>