Apple may get the edge on rivals by having two iPad updates in one year. Following a purely speculative mention by John Gruber on Wednesday, a separate rumor asserted that the imminent refresh would be followed up by a "big fall surprise" that would be a second model. What it would entail wasn't given to TechCrunch but might be the 2048x1536 display for which prototypes have been circulating but which was thought to be too early for the spring model.