Possible draw on the iPhone/iPad web page using HTML5?

Is开发者_JAVA技巧 it possible to draw with your finger using the iPhone or iPad in HTML5? If the user were on a PC then the user would need to be using a mouse for the same effect.

Yes.

Check out deviantART's new drawing tool Muro for an example, and Apple's Safari DOM Additions Reference for an overview of the API.

It sounds like you're looking for something along the lines of SketchPad. It uses a <canvas> element in browsers that support it (and fakes it in IE).