"So Zyb has many things going for it, but most of these things are only slightly above what you would expect. You have solid sync, but that option is available from many companies, e.g. Mobical or GooSync. You have a no-frills social network competing with similar networks with much greater complexity.
But, most importantly, you have a mobile focussed product with very little mobile component to it. I’d love to come back in six months, see what’s happening on the handset and recommend Zyb then, because right now I don’t think “that’s cute and looks nice” is enough to give it more than a qualified nod of the head."