You may have heard Opera is converting to WebKit/Chromium. I just tried Opera Beta on an HTC Evo 4G Lte. WebGL is enabled by default, and Cesium Viewer ran smoothly right off the public site, without modification. Didn’t measure fps but it “felt” similar to Chrome Beta for Android. Multi-touch works as expected. Need to update our wiki!
Opera’s overhauled Android browser now in beta http://cnet.co/1653xjF