You'll have to acquire some test files from somewhere for this of course, if you don't have the actual camcorder available for you yet. Maybe the retail shop would help?
I was able to open and edit a movie from my camera at 1080 59.940p, but I had to go in Advanced and create a custom profile for it to let me save a movie file as there were no presets that let you select 60fps. The output file was also a smooth 60p so it looks like it worked!
The movies from the NEX-5N have the .MTS file extension. If Vegas 10 can open and edit the movie, I'm pretty sure Vegas 12 64-bit can as well.
I simply dragged the raw movie from my camera into the trimmer window and I didn't need Handbrake for anything. Did you still need to convert it into a specific format? I thought Vegas handled every format.
HandBrake does it as a MP4 file. Handbrake is a free convertor, which I mostly use to make my PF files from my Canon into true "P" files by using the Detelecine function.
Canon places thier 24/30P formats in a 60i wrapper. I don't think the current NLE automatically sense the 3:2 or 2:2 on full HD (Movie studio does it on 24p DV if you check it in preferences). A telecine pulldown is different than deinterlaciing.
Any one here have any more information?
I've submitted this to technical support and will post the answer here.