State of HTML5 in mobile browsers

What is the state of HTML 5 on the mobile browser ? I'm particularly interested in the offline storage possibi开发者_开发百科lities (localStorage, Database storage with SQLish interface).

• Android > 2.0, database storage available (what about 1.6?)
• iOS > 3, database storage available
• Blackberry Webkit based browser ? database already available? In which version ?
• WP7, the browser seems to be a mix of IE7-8. No offline storage available I guess ?
• Symbian, It seems that QT (>=4.7) based Symbian application have access to Web Storage via QTWebkit http://doc.trolltech.com/4.7/qtwebkit.html Any idea how is it supported in the builtin browser ?

You can find your answer here http://caniuse.com/ under Web Storage, it's the most complete list I have seen so far. I will update this answer if I find something more detailed.

You can find all these information at http://www.html5test.com. Not only webstorage api you can check all api's support