Dude lol, it's not a rip-off. It's a response track to "Stay Fly" and the song also features Three 6 Mafia.
Anyway, I bet "So Amazin" will live up to it's title as long as Milian is able to separate her self from the other R&B chicks. I hope she becomes a big name in R&B for new Millienium like Beyonce, Usher, Alicia Keys, Ciara, & Ashanti.