On a side, Opera now has an experimental 64bit version for Windows and Mac (there have been 64bit versions for linux and bsd for a while). Plug-ins load out-of-process with 64bit and 32bit plug-in wrappers. Plug-ins can crash without crashing Opera. This also means you can use 32bit plug-ins with 64bit Opera. And, it has a 64bit JIT. Hardware acceleration (at least via opengl, directx to come) is in this build too.