The handset market is one in transition during this quarter. All forms of cellphone are commoditizing, and it remains to be seen whether any of the vendors can launch a sufficiently radical new design this fall to inject new life, and premium margin, into the form factor. If not, smartphones will become a game of cost efficiencies, price wars and distribution strength, and the hunt for high margins and brand profile will shift even more decisively to larger screened devices like tablets. Which does not bode well for Apple, since in its fiscal third quarter, the iPad was the most disappointing performer. Apple, like most of its rivals, was reporting a quarter with no major new models, but in that…