In case you missed it, @marcoarment has launched Instapaper for Android, including an ad for it by Howard freakin’ Stern (like myself, Marco is a big fan).
Marco has had a history of not wanting to do an Android version, not because he doesn’t like Android, or thinks it won’t work, but due to many other reasons, most around scaling of his main resource (himself). I’m really interested in hearing how this works out and if his predictions of doom and gloom in terms of launching an Android app come true or not. You can hear all about this and more on his Build and Analyse podcast.