In my opinion yes. Comparing the two, they have the exact same functionality that I care about and Readability has a Chrome extension which is a lot better in

In my opinion yes. Comparing the two, they have the exact same functionality that I care about and Readability has a Chrome extension which is a lot better in the Instapaper bookmarklet to me. Instapaper does have a collection of previous articles that I still want to read which makes the scales basically even but Marco's arrogance and his...I don't know if sense of entitlement is the right description but regardless I don't have the urge to suport him just because he is the "little guy". For iOS user's I think Readability and Instapaper are interchangeable but the big difference will be Readability's Android support. Marco is on record saying he will never have an Android version because he never wants to hire anyone. He always wants Instapaper to be a one man operation. In the end competition is good. Hopefully Readability will bring some new ideas to the table and if Marco has the capacity to either keep up with them or innovate in other ways then these "save to read later" tools will just get better.