I agree UI can be improved further but javascript and html5 performance is amazing, getting 313 (9 bonus points) on html5test and sunspider 0.9.1 test score of 3644 ms - which is even better than galaxy s2. Plus ability to save web pages as pdf (for offline viewing) is an added bonus.

run the sunspider test for yourself and compare the performance against other leading phones/OS

http://www.anandtech.com/show/4177/s...00-benchmarked