To get the 15K miles, you have to call the 800 number. I saw the information from the NW thread and called the number last week. Was told verbally that I will get 15K and no fee for the first year. It will be weeks before I can verify the actual miles.

FFF3 = Fly Free Fast, 3rd year.
Get the credit card = Qualifying event. Then have 5 partner activities by end of August to get another 10K.