I kind of need access to things from multiple places and platforms. This works with products such as DropBox. I had high hopes for Readability which I feel committed to use on ethical grounds. They promised that there would be mobile apps, but now acknowledge that their app was rejected by Apple. Readability has an option in which you commit to a subscription fee (minimum $5 a month) and they distribute 70% of this money to the registered sites that you process to avoid ads (in the manner that Instapaper allows you to read without ads). It appears that the voluntary subscription or at least 30% they are taking is the sticking point with Apple.
[Followup – this analysis appeared on the MacWorld site after my post was written.]