Just to be clear (and expand on ocdtrekkie's comment): - Most apps today do not require login when accessing a sharing link. It's an important design goal for

Just to be clear (and expand on ocdtrekkie's comment): - Most apps today do not require login when accessing a sharing link. It's an important design goal for us that your friends don't have to create accounts to collaborate. - <vaporware>We plan to add ways to bind grains to easier-to-remember names in the future.</vaporware>