Bad news... in CooconJS Launcher shows exactly 6 FPS <img src="smileys/smiley19.gif" border="0">
Have you seen this?
Maybe it can be helpfull?
That is great, but as Ashley said there: "3D without WebGL is generally too slow to be useful" and he is right... I tested the phoria.js demos on iPhone 4 and I get 1~10 FPS in browser <img src="smileys/smiley6.gif" border="0" align="middle">
<font color="blue">Of course if phoria.js is implemented in C2 as the Effects are (require WebGL), it could be totally usable</font> <img src="smileys/smiley20.gif" border="0" align="middle">
Still, the solution that I presented was to create simple 3D objects using images (no "real" 3D involved) in order to maintain canvas2d compatibility at decent speed.
Also, R0J0hound's solution to use his plugin is great (use only one object instead of many), but is slower on mobile if used to render more objects <img src="smileys/smiley2.gif" border="0" align="middle">
I've just purchased Spriter for character animations, but I can also use it to exemplify my 3D implementation <img src="smileys/smiley20.gif" border="0" align="middle">