I'm indifferent. This type of sponsorship/ownership is the future of the MLS and other leagues without huge TV contracts. I assume that Sierra Mist doesn't see the brand as a competitior. If they pump money into the team and, more importantly, keep the stadium project going, then I'm all for it. As for the die hards who are proclaiming the death of the Metros, get over it. We have turned over 75% of the roster in 18 months and play in the most sterile enviroment in the league.
As to the "New York" thing, it is always going to be an issue with New Jersey teams. No offense to the Garden State, but if I am Red Bull marketing execs, the "New York" name has more allure. If I had to guess, they will be called the Metrostars for this year and will be allowed to change next year, hopefully in a new stadium where the NJSEA isn't a problem.