Look at Opera Mobile 12 stealing Chrome Mobile’s & Firefox Mobile’s thunder:
And while there’s more to browsers then just HTML5-support, Opera Mobile 12 also seems to offer greater support for modern web technology features than IE9.
To be honest, Opera Mobile 12 doesn’t shine in the JavaScript performance benchmarks (2843,6ms for Sunspider, 463 on the Google V8 test, both of which at least Firefox Mobile does a better job at), but with the upcoming Firefox Mobile 12 and the (Android 4-only) Chrome Mobile beta the mobile browser “wars” have certainly shifted into a -much- higher gear. Let’s hope Microsoft (and Apple, but Safari Mobile isn’t too far behind yet) follows suit.