I'm changing all my products progressivelly to .dmg. I'm getting mad with all comments regarding app-does-not-launch and permissions problems caused by StuffIt. :(
Unfortunatelly, this makes bad reviews, less stars... I don't need stars, really, but MacHacha has been allways a great product (as I see it) and StuffIt is beating my product (not only my products, lots of other developers are suffering the same problem), and this is bad for all us.