Update: Ran the benchmark on an iPhone 3GS 32Gb and saw yet another three-fold increase in speed.

Schiller was tossin’ around some pretty impressive benchmarks on the new version of Mobile Safari in iPhone OS 3. I’ve been using the OS 3 betas from the second they were available and definitely noticed speed improvements right off the bat.

These SunSpider tests were done on the same 2nd-gen 16Gb 2G iPhone on the same network. I’ve been saving these numbers for a bit, dang NDA, but now here they are: