News of the day seems to be a series of job postings at Apple – no less than eight – for antenna engineers. Posted on June 23rd, the day before the launch of iPhone IV (or, 4, if you’re not into epic things), the postings raise some suspicion about the alleged signal failure problem, and whether or not Apple might have suspected something was up with the device before it hit the market – or at least after the flood of signal complaints on the afternoon of the 23rd. Whatever the case, Apple isn’t prepared to dick around. Applicants “will be expected to performance radiation performance measurements, create…