HTML5 for iPhone Android and Windows8

[skylab]

if I learn HTML5, can I use it to make games on iphone, android and windows8 or are there limitation to that? Also what's the best platform to start creating games using html5? 

[Maras]

I would also like to know if it's easy to package HTML5 as app for stores :-)

 

(I googled some methods, but as I did not even started with HTML5, I am not sure how much work it will take and how many buggs will appear )

[ghostrifle]

You can package your HTML5 game/app for example with cocoon.js. Then you have a "native" iOS or Android app.

[Wins]

You can write game in GameMaker Studio and publish it in App Store, Google Play etc

[astoria0128]

You can make your app through cross platform mobile app development tools such as phoneGap. This tool is based on HTML5 language which enables you to develop your app for all major mobile platforms.

[Neoprofessor]

When you develop HTML5 games you're always going to have 3 components, an html5 document (index.html), javascript, and your media files. There are many wrappers, as noted above, cocoonjs, crosswalk, ejecta, etc.... Choosing the development environment is more important. What your comfortable with and the support they offer are more important factors. Personally, I recommend Construct2.
Very powerful, extensible, aggressively updated,hundreds of tutorials, excellent support and forums, and you don't need to learn code to use it. If you can code, even better. You can extend it easily with plugins. If not, its' visual coder will help you to learn.

Good Luck