I am currently using Bolt.. It works great, it is fast. The only thing is, the escape button does not work. So you have to manually press menu button and click Back to go back to previous page.
They say bolt is better for streaming vids but my bolt browser does not stream anything, even after the test settings. It just stays there "LOADING...".
I hate how my iPhone and G1 have excellent Youtube quality and the 9700 has to use the m.youtube.com crappy quality.