Incredibly reactive, I had some initial problem with market, clearing data did the trick. I had browser and launcher crashing in loop, reboot and everything seems fine. When I tought ICS couldn't be faster, here is this...imagine when official will be released and the dev tweak it to death, no need for a tegra 3 tab for now.
Acer ICONIA TAB A500 16Gb
[randomblame JB 4.2 AOSP]
“Let the future tell the truth, and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I have really worked, is mine.” -Nikola Tesla