I know the reaction is mixed on this program, however, myself and I'm sure for others, I'm glad that I'll be able to have everything in one, on my wrist. As far as Disney, perhaps, using my activity information for marketing purposes, which results in them sending me an email about something I might have interest in, then I have no issues.
The FP+ does seem a little restrictive in it's one park limitation though. It probably won't affect us too much, we barely use the system because there's never any left by the time we get to the park.
Would the limitation of 3 FPs per day have the effect of spreading out FPs to more guests, rather than one person using 12 in day? If so, that may benefit some of us.
The 60 day thing seems perplexing, particularly for annual pass holders, many of whom probably visit without advance planning. I'd be surprised to find that Disney hasn't considered this fact. Perhaps there will be a pool of passes to be used on the day, and another pool that can be reserved in advance.
Guest services at magic kingdom informed us of another big test in August, so perhaps some details are still being finalized.