Over the next few weeks, we’re going to get our first inkling of whether all of this talk of open networks is real or just a bunch of hogwash. On Thursday, Apple will give the world its first peek at the iPhone software developer’s kit (SDK). And on May 19, Verizon Wireless will release its own open-network developer’s kit — not so much an SDK as a set of specifications that would allow third-party device makers and app developers to shoehorn their wares onto VZW’s network. more