Instapaper is a place, time AND device shifting service for content. Its market leader position on one or two devices was made more precarious by not branching out as soon as possible to as many devices as possible.

Marco's personal inclination was to support only platforms that he himself used—that's why he built a free service into Instapaper for the Kindle platform while ignoring the Android platform. I initially had an iPhone and an iPad, on which I owned the Instapaper client, then upgraded to an Android phone. I promptly switched to another service with support for my platform.