Alpha version of Opera 10.5 browser was earlier released before Christmas for both Windows and Mac, which caused a bit of upset in the Linux community. But, now we have come to know that it was delayed for a good reason.
Another improvement over the previous versions is that the cache is more streamlined allowing faster start up and shutdown times. It will support the newer HTML5 properties.
Bottom Line: Once again, Opera will become the faster browser on Earth.
See the benchmarks taken by pallab.net
Here is the screenshot of the Opera 10.5. Notice that it uses the screen real estate much more efficiently.
It is interesting to see a small company like Opera giving Chrome a run for its money.