I am getting a crypto score of 3891 for v6 on the Firefox 4 nightlies, and 2630 for v5... seems like a rather drastic difference given they supposedly didn't change anything in that part of the benchmark.
No longer completes on Firefox 4 Beta 6 on Linux x64. I get an unresponsive script message after hanging at 67% for a while. Asking the script to continue just makes it loop back around. Interesting results, particularly as v8bench is one of the benchmarks used on Mozilla's <a href="http://arewefastyet.com" rel="nofollow">http://arewefastyet.com</a>.