Mine has been upgraded, on Friday 27 Apr. Awesome.
The update ran without a hiccup. Improvement to animation transition is great. Wifi hooks much faster - even during the waking up from standby, before typing my password.
Battery drain during standby has been addressed. It kills only 5-6% of battery during 10 hours sleep. Can you complain?
Now the bad side:
Screen intermitten off has not been addressed. Battery drain during use: I just notice it: 10% during 30 minutes with wifi while I am on a forum, and ten web pages running in the background.
I started this thread before ics got rolled out, I got ics on the same day it was being pushed out. I've noticed it has been more responsive/faster, my tablet s, no longer freezes, and like the cool features they added. I live on Guam, thankfully mine got updated, probably because my tablet, wifi only version is from the U.S.