SDN anyone?

DISCLAIMER I work in the enterprise market, mostly with routing&switching, wireless, security products from multiple vendors. I have no SDN/cloud/ISP real experience yet. My views here are based upon meetings with vendors pushing SDN solutions and fellow engineers who shared experiences, doubts and some labs to test the products. After attending a few SDN presentation of various vendors I’m starting to make an opinion about SDN myself. Here’s what I got so far.