At low production, the cost compared to single use plastics will be higher, but I think at a larger scale could be competitive.
As for the environmental impact, using a nuspoon instead of a single use plastic will offset the possibility of that plastic ending up in the waterways since nuSpoons are compostable.
For scaling, integrating into existing packaging via pressure release adhesives, such as on the side or lid of a yogurt or soup are one way. As for a pull off, you could attach a coupon to a sampling spoon so that when a potential customer tastes your product at a supermarket, they've already got the coupon in hand. or integrating it into to go boxes... I've used nuspoons on multiple occasions eating leftovers when I didn't have another utensil available.
In the past, I've also designed spoon tickets for a chili tasting competition, where you would get a book of spoons and each one was "void when folded" (you could give the chili chef the nuspoon, she would fold it, then give you a taste of chili with the folded nuspoon) - never went into production though.
Integrating the nuSpoon into packaging is definitely a good application! I actually included a few ideas for that on the patent application https://www.google.com/patents/US20140238987 I do want to steer clear of petroleum based plastics though.
As far as customer information, I don't have enough sales yet to get useful data.