Looks like those rumors of an iPad 3 coming out this fall were, unsurprisingly, not accurate: reports have Apple's next-gen tablet going into production starting this October as prep for an early 2012 release.
The last two iPads were released in April and March, and this timetable has it looking good for another March release. Apple's manufacturer, Foxconn, will be joined by Pegatron, which should provide them with plenty of supply with the iPad 3 drops. No more long lines and shortages, hopefully! Time will tell.