Today when I was walking through the OraNA feed I saw that nearly all of the posts were about 11G being available for download. 11G is starting to get hot it seems. I am sure we will start seeing lots of posts about the new features soon.
Gregory Guillou of the Pythian Group has two posts about bind variable peeking in 11G, here and here. This is an interesting change in the cursor sharing behavior. I will test this and see how it behaves myself if I can finish my download. It is going really slow for now.
By the way the zip file is more than twice the size of the file for 10G R2. 10G R2 installation zip file was about 700MB while this is 1.7GB.