The Use of Information section includes press releases although it is not counted in the sharing section. I also see no commitment to anonymising the data.

Jawbone uses your information to provide and deliver products and services you request; personalize your experience and customize content, marketing, and recommendations; respond to requests that you make, provide you with customer service, send you press releases, general informative announcements, and promotional information about us or our products, or to aid us in serving you better; and protect, investigate, and deter against fraudulent, unauthorized, or illegal activity.

Well, we the general web audience aren't providing any services to UP wearers on behalf of Jawbone, and they're not giving us the data to store (that is, they're not asking us to store it), so that quote doesn't allow such a sharing of an UP wearer's data. However, they might be willing to argue that sharing aggregated data isn't the same thing as sharing your personal data; it wouldn't be a totally ridiculous idea.