While the concept of “save for later” has been growing in popularity, it is not something that the majority of people understand, nor immediately see the value of. Integrating a service like Pocket into your day takes a big investment of time up-front. It takes a little bit before it finally ‘clicks’ and a user can truly see the benefit. No app store description or screenshot can do that for you. You just have to use it first.
Great read on why Read It Later/Pocket went free. They have yet to reveal “pro accounts” like Evernote has which might be a problem.
This space — of going completely to information storage — is very interesting. Most people are still wrapping their heads around binary documents being stored in “the cloud”. This is one step further, of storing and slicing / dicing info directly, with a binary document store in sight.