No I don't, however I have used my iPhone for just over 12 hours now. Both on EDGE and WiFi. I also have a lot of experience with other smartphones as a basis for comparison.
EDGE is typically slow compared to 3G, so that is to be expected. WiFi is slower on the iPhone than my other smart phones like my Nokia E61. I'm not sure why, but it's Apples first try so I can live with it.