Looks like this paid app is going to be the only NES app on there unless someone else creates one. The original developer is just using a different name. Its the same person. Saurik has been pressured to remove the app since nervegas is charging for an emulator without proper licensing from nintendo which is illegal. They cite the turbografix emulator proposed for the app store but rejected by apple due to lack of proper licensing. There is growing animosity among die hard emulator fans about this, and some have contacted nerve gas about this. They questioned the legitimacy of his claim that he reverse engineered the NES gaming console and built this emulator from scratch. They said that if he used the publicly available codes, then he can't charge for it because they are owned by Nintendo. Nervegas says he doesnt care, will do what he pleases with this app, and nintendo has no rights to it.
Heres some tidbits from twitter and another forum from people who have talked to the developer
"
[12:34] <Optimo> hey
[12:34] <Optimo> emulator not illegal
[12:34] <Optimo> roms is
01[12:34] <@Blaqkie> Oh, hey opt
01[12:34] <@Blaqkie> Really?
[12:34] <Optimo> emulator is just reverse engineering
01[12:34] <@Blaqkie> But I thought emu's have to be licensed to be sold?
[12:34] <Optimo> thers no rules
01[12:34] <@Blaqkie> Ah, ok
01[12:34] <@Blaqkie> cool
[12:34] <Optimo> the copyright applies to software
01[12:34] <@Blaqkie> Ah ok
"
"I don't believe it. Optimo is wrong: make emulator is legal, distributing roms is illegal. But selling emulators is illegal.
Just to give you an example: ePSXe was made in 2000 and, in the contrary of other PSX emus, they made it possible to a 200MHz processor and small stuff like that with graphocs and sound similar to the Playstation. Sony wasn't happy at all but there was and there still is nothing that Sony can do about it: they're distributing the emulator for free (point 1), and they weren't giving the BIOS (point 2) so it was and still is legal for the ePSXe Team to make the emulator
In this case, NerveGas is selling the emulator, so it's illegal because it's a way of saying that he created the Application and the names and ROM reading which all are Registered to Nintendo."
BTW, The reviews are in and it runs the same as the older version. Sound is slow, video lags, and the app as a whole has bugs. Everyone break out your credit cards.