It should have always been a Nissan badged car. The Skyline has been Nissan ever since it changed from Prince in the mid 50's. To lux it out like an Infiniti would have/need to be would slow it down with extraneous BS. Give me a car with cloth seats and tire noise, not some rolling cow hide anechoic chamber.
Nissan dealers will be just fine working on a high end car like that. I wouldn't be suprised if there was some additional required training or certified dealer network (like VW did with the Phaeton).
Early 07? Lets count down the days until absolutely no one on TR gets one!