HTML5 is an evolution in web technologies and as that a great idea to write games in. The main reason is that you have all the benefits of the web and the fidelity of technology that you need. Furthermore, distribution and advertising of your products becomes dead easy.
15. What the web could do
for Angry Birds...
Multiplayer – one player builds fort with
pigs, other plays the bird.
Comments and hints
Voting and indexing levels by frustration
level (find me a simple level first)
Fan-built levels
Simple re-use across platforms