I know I have all my notifications and such set to let me know asap when the site launches proper. The twitter feeds of those involved are dropping hints left and right, and since they severed their link ties with The Verge last week, the feeling of anticipation is high.
I'm not a huge fan of Gies, but everyone else involved with the writing on there seems to be top notch. I'm planning on using it frequently to get constant news thrown at me. Tricky, Ben Kuchera, Joystiq, and RockPaperShotgun keep me informed at the moment, and Polygon should fill out that list nicely. As far as their site identity goes, I have no idea where they stand. They cover the bases with the text editorial content they're putting out, but I have no idea if they're going to be doing video content, is their podcast any good, are they going to be a presence at conventions, etc. So to see how they're going to evolve (are they going to be charging for content in a years time?) from afar is going to be an interesting proposition.
Eagerly awaiting another site launch I remain,