Lol....well, basically what I meant to say was, "What makes Oneness Pentecostalism different from any other denomination?" I've never heard of it, so I was just curious...
Oneness Pentecostalism rejects the traditional understanding of the Trinity and espouses the doctrine that Jesus is the Father incarnate. We also believe that baptism by the Trinitarian formulation is a deviation from the original apostolic practice and that baptism is has regenerative power over the sinner when applied in faith.
We are an evangelical movement that practices speaking in tongues and faith healing. Also, there are "holiness standards" applied to both men and women that are based upon the virtues of modesty, gender distinction, and human conduct that are commonly not found among other denominations.
And that is probably the shortest summation I've ever given on Oneness Pentecostalism. For more information, Wikipedia has a decent article on the movement.