Opera 10.50 Beta has been launched yesterday, and I must say that there is a big difference between this version and that one that was launched earlier, Alpha. You can read more about the Alpha here.
This last version (10.50 Beta) is very fast and most of the problems which were present on Alpha are now gone. Flash is displayed correctly, and posting from Blogger
works perfectly(I'm blogging right now from Opera) NO. Posting from blogger is not working. The "Publish Post" button is not working at all. It runs very stable (compared to the previous version), and all the scripts are working correctly.
However, it is a Beta version, so use it on non-important purposes.
Download from here (Mac only): http://www.4shared.com/file/230898428/6b8f05ea/Opera_1050_b1_Setup_Intel.html.