Hello HN, I just baked in a new feature on my site Instagrid.me, which allows anyone to subscribe to an Instagram user's feed with their email address and receive new uploads to their inbox. My goal was to provide a way for non-iPhone users to get in on the Instagram craze. It's a nice way to let friends, family, or fans subscribe to your pics. This was a weekend project inspired by bmull's Morningpics. Check it out at http://Instagrid.me