CM7? Why aren't you running ICS? Even the official Sprint firmware has been upgraded.
Yes, JavaScript has come a long way with the latest engines. However, it's still a long ways away from being competitive with iOS or Android NDK Apps. Even Mozilla's poster child for the potential of HTML5 in 3D gaming, Banana Bread, is 4-10x slower than its native counterpart Cube 2.
i occasionally flash CM9 and CM10 nightlies to see if performance has improved. unfortunately both are significantly slower even with third party kernels than CM7. also, there are no 4G/WiMax drivers for anything above GB, so i really have no better options. it sux i cannot run latest native browser or chrome, but i run FF mobile nightly and Opera if i need the latest goodies.
Yes, JavaScript has come a long way with the latest engines. However, it's still a long ways away from being competitive with iOS or Android NDK Apps. Even Mozilla's poster child for the potential of HTML5 in 3D gaming, Banana Bread, is 4-10x slower than its native counterpart Cube 2.