[whatwg] several messages

[João Eiras]

>> The ImageData APIs already provide the ability to do this and are
>> already supported by Firefox, Opera and Safari.
>
> Given the ImageData APIs, and given that they are generally more efficient
> at the typical use cases for getPixel/setPixel, I haven't added getPixel/
> setPixel to the spec.
>
> Cheers,

The opera-2dgame context also has APIs for collision detection and control painting
http://my.opera.com/WebApplications/blog/show.dml/200788
I'm not familiar with the current canvas spec, but are these features supported somehow? Or would they have the potential to be included ?