Xperia 2011 users note.

Hi everyone.
This post is for all Xperia arc S (LT18), neo V (MT11) and ray users.
Have you all upgraded your phone to Google Android 4.0.3 Ice Cream Sandwich?
If you have not done the upgrade, don't do so.
Why?
As i tested on my Xperia ray, the frame rate seems to be reduced.
As for image and video quality, it is not as good as it was on Google Android 2.3.4 Gingerbread, what's more, it won't shoot videos in stereo sounds anymore.
And, the touch or sliding is not as responsive as it was before, a application takes longer time to open as well.
What's more, games such as Angry Bird, Temple Run and most High Definition games won't work well as i said, reduced frame rate.

For Xperia active, arc (LT15), neo (MT15), mini (ST15), mini pro (SK17), play, pro and Live with Walkman:
Google Android 4.0.3 Ice Cream Sandwich is scheduled on late May/early June, please do not upgrade your phone as the upgrade actually affect your phone performance more.