Every time I suggest that Sprint is a possible buyer of Vonage I get laughed at. Well, now Business Week postulates that same idea.
Besides customers, the only thing Vonage has is marketing know-how that got them to where they are. That marketing know how is largely based on "SPEND THE MONEY" but there's no real technology that can't be easily obtained.
Law suits like this are called "celebrity" suits. Sue a big name, hope it gets settled, then hope others in the space settle and that others get in line and pay.