Short version: how to view the geolocated molecules:
This is how I setup the backend for the geolocated molecules, using Hoppala to provide hosting and editing for a Layar layer. Layar indexes Points of Interest (POIs) with associated information and URIs. These can then be picked up by the Layar browser on a mobile device, in order to create the 3D overlay on reality. However, Layar doesn't host the files itself; one option is to use Hoppala, which both hosts and allows for easy editing of POIs and metadata. The stages involved are:
This is a quick mashup, to create an augmented reality layer of molecular models for the PMR2011 Hackfest in Cambridge. The idea is to locate molecules based on an important event in their history - their place of discovery or refinement, for example.