The big question, of course, is whether the plaintiffs in this complaint can succeed in court. Currently, Apple controls about 83 percent of the online music market, 75 percent of the online video market, more than 90 percent of the hard drive-based MP3 player market, and more than 70 percent of the flash memory-based MP3 player market. Those are heady numbers, similar to those Microsoft enjoys in the OS market. And certainly, Apple has actively worked to ensure that its products work only with each other and not with competing solutions. Is that illegal? We might just get the chance to find out.