I am a long time Instapaper fan but I have trouble reading through my reserved reading list on anything but my iPhone. If I had to hazard a guess it would be because of offline access. That's the beauty of this application, I have full access to my Instapaper queue without having to be tethered to my desk/wifi. It also doesn't hurt that Read Later is free.
(via Thomas Houston)
I would wholeheartedly pay for this app should the developer choose to charge for it. (Although, I am very new to this application, so the developer may have initially and this may just be a promotion but I am unsure.) ↩︎