Your browser does not support iframes.
Leaving out all the hot air about small companies beginning with “A”, here are my thoughts on canvas for making games compared with haxe/flash:
Immediate mode for graphics allows you to draw a scene how you want with your own containers. The retained mode MovieClip object in Flash is an annoyance for me. Hopefully similar things happen in web graphics as it did in 3D with the early DirectX retained mode, which was eventually abandoned.
It’s nicer to develop in a normal webpage rather than a plugin.
Canvas is currently much much slower than Flash. It’s quite possible I’m doing something stupid, but the canvas version uses about 40% of my processor where as the flash version is 5-10%.
Less built in support for text and user interface items like entry dialogs. There is probably much more missing along these lines, and much that will need to be implemented from scratch. Personally speaking I am not too fond of library frameworks implemented by architecture astronauts, so I can live with this at the moment.
Update: While I hope HTML5 is the future, it seems on some counts my optimism was premature, it seems it’s still to reach a point where it’s available for the majority of people – and where it is available, the stability and performance is variable. With this in mind : On flash, software art and freedom