John Gruber on the HP TouchPad ‘summer’ release:

Summer feels like a long time away. If my theory is right, they’re not only going to be months behind the iPad 2, but if they slip until late summer, they might bump up against the release of the iPad 3.

I’m unsure what Gruber means here, but TechRadar’s assuming he’s talking about the iPad 3 showing up in September. There’s some logic in this from a technology standpoint, in that Retina displays might be ready for the device by that point, but I don’t think Apple’s going to start offering iPad upgrades every six months. Doing so would wreck a chunk of sales, massively upping hold-outs. Also, given that international releases of Apple iOS kit are often delayed for three or more months, it’d be crazy to have the US gearing up for iPad X when some countries only just got iPad X-1.

I suspect Apple will stick to its annual refresh for this and its other major hardware products. The reliability and regularity is beneficial from a sales, marketing and manufacturing standpoint. To that end, I’m thinking the iPad 2 will show up in the USA a year after the iPad (i.e. April) and then elsewhere over the summer, and the iPad 3 to show up in April 2012. (Alternatively, perhaps the upcoming iPad might not be considered a ‘major’ revision and won’t be branded iPad 2, but even if the only big change is a FaceTime camera, that’ll cause enough of a splash in the press.)

UPDATE: Gruber follows up by saying the transition would make sense, with an iPad announcement replacing the iTunes/iPod one, which he says is “old news”.