Well, not exactly. The question isn't about whether we think a hardware revision is coming, because we all know that it is...eventually.
Really, my question is about people's attitudes towards such a revision. Within a half-hour of opening the poll, June 2011 is already leading the other options by a substantial margin.
My thinking is that iPhone customers feel that, not only are they buying an iPhone, they're buying a 12 month contract to have the latest-and-greatest iPhone. Apple's done themselves a bit of a disservice by falling into a pattern of releasing each subsequent hardware revision in June; if iPhone 3G had come in August 2008 and iPhone 3GS had come in May 2009, they would have potentially avoided being almost locked into a 12 month release schedule. (It's ironic that Apple seems to know better--that's exactly the reason they gave for pulling out of MacWorld Expo). I've heard some speculation that iPhone 4 was released before it was really ready partly due to the Gizmodo scoop, but also probably due to the past history of a new iPhone each year in June.
It's almost certain that one of Apple's top priorities for the new revision of iPhone hardware is a fix for this antenna issue; I'm sure no one at Apple wants to relive the past 30 days. With their best and brightest working their hardest at it, it's possible they'll come up with a solution that would allow them to release a new revised iPhone before June 2011, but it seems that will just piss current iPhone 4 owners off.
The thing that's just a little bit tragic about that is that iPhone customers seem to be so obsessed with having the latest-and-greatest that they'd rather see Apple stifle innovation than risk not having the newest iPhone in their pockets.