FF rules because of the amazing range of plugins. Eventually, if the iPad is going to be taken seriously, it needs to incorporate more advanced browsing features that are available on the desktop. Mobile Safari is okay on a phone in 5 minute bursts, but I wouldn't want to use it for hours on end.
Agreed. Im a big fan of AdBlock, NoScript, Screengrab, SiteAdvisor, Download Helper, Forecast Fox, Puny URL...not to mention the fact saving bookmarks is exponentially more logical (the ability to create new bookmarks folders inside others without having to additionally go through the Bookmark menu alone is worth its weight in gold).
Each browser has its pros and consmore often than not, if Im in Safari for one reason or another, I find myself rolling my eyes over some missing feature, then flipping back to Firefox. Wouldnt use Safari at all if not for the fact I keep hitting snags on Facebook with FF (odd, since others dont seem to have the same issue).
Just my two cents. Id jump on FF for iPad in a heartbeat.