Judging by the features provided with this version, as developers and users you should be smiling happily because this release provides all the necessary benefits to you.
Watch this Youtube video to know what Ice Cream Sandwich 4.0 offers to you:
You will find a package of new features, improvements and changes. Of course "Fastness" is within in order to increase user experience using the ICS 4.0 devices. However the cons of this version will no longer with Flash support, and lack of compatibility with Facebook applications. Which may halts Facebook fans to upgrade their software.
So now how about the new features Android Ice Cream Sandwich 4.0 brings? You can read the PCMag post to find out.