Of all the places from which you’d expect inspiration for an iPad app to come, TV infomercials generally aren’t at the top of the list. Such is the world we live in though, since VocalTech Communications, the company that has long hawked their USB VoIP device magicJack in late night commercial spots, is setting their sights on the mobile computing market, including the iPad.

Their new service, called magicTalk, promises to offer users unlimited calls to both landlines and cell phones with no fees attached. Users will be able to port their existing numbers over to magicTalk, and then make calls for free. VocalTech didn’t make it immediately clear how they actually intend to make a profit with magicTalk, though its older brother magicJack costs a premium to purchase and only comes with one year of free calls.

Delivering VoIP on the iPad is hardly a “magic” innovation. Users have been able to use the Skype app originally designed for the iPhone on their iPads since launch, though to date some sort of contractual disagreement has forbid its use over AT&T’s 3G network. Evidently, VocalTech “hasn’t quite decided” if they are going to allow the use of their service over 3G, citing sound quality. Contributing to the confusion in the burgeoning VoIP market, a third service called Truphone, does allow users to place calls over 3G, but charges a small fee for calls made to other networks. No one service appears to have all its duck in a row.

While the magicTalk service appears to have a slight edge over the other entrants in the nascent iPad VoIP market by virtue of its free connection to traditional phone networks, the product may be weighed down by the reputation of its parent company. Tech blog Boing Boing exposed the nefarious magicJack end user agreement last year, finding that it required users to listen to advertisements in order for it to work, and even allowed the company’s computers to snoop in on user phone calls in order to fuel more directly-focused advertising.

If something sounds too good to be true, chances are that it is. Savvy users should reserve judgment until the app launches in a month or two, but chances are that free phone calls have to come with a price somewhere.