im an opera mobile user myself, i love skyfire cuz of flash suport but i barely use it cuz the navigation sucks, sure it displays the page faster but its not really loaded, its like surfing the web with googlemaps or another gps app, as you scroll and pan the constant rendering and loading makes the display blurry and those aweful checkers Opera is much better for navigation expecially forums where you can quickly scroll through all the post without the constant rendering slowing you down, plus the downloads are better in opera cuz i download entire movies and cd albums without a problem unlike skyfire that fails on me 99% of the time. Plus, its a real browser, not a mirror of the site that a server sends you (thust safer) all you need is a really good and fast version of opera mobile and you are golden. i myself am using build 15202

PIE and IE6 are laggy and i hate god aweful mobile sites

OperaMini is fast but with less features

Netfront is good, but still behind

just my 2 cents
cheers...