Remember those crazy sons of guns at patent holding firm NTP that ended up working RIM for a shade over $612 million? They're back at it, throwing lawsuits at AT&T, Sprint, and Verizon -- that's three of the States' four national carriers, in case you're keeping count -- for alleged infringements of eight patents involving mobile email. The firm seems to be something of a one-trick pony seeing how mobile email was the issue at hand with RIM and later with Palm; for a company that does nothing but sue other companies, two-thirds of a billion dollars seems like a plenty healthy bank account, but heck, what do we know? At this point, we're assuming that once they're done suing every company that's ever offered, used, or mentioned "mobile" and "email" in the same sentence, we'll finally be able to put this issue to rest -- but until that day comes, watch your back, folks, because NTP's back on the prowl.
Update: Silly us for thinking NTP wouldn't just go ahead and make it a nice, round four! T-Mobile's been caught up in the suit, too, with its Sidekick services specifically called out (among others) for infringement of NTP's email patents.
[Via Phone Scoop]