We all (at least majority of us) use some sort of maps to reach from one destination, say home, to another destination, say a shopping mall or a convention center. But once you've reached the mall then you switch to a different set of tools to navigate that is typically either a paper flyer or sign boards within the mall. Micello.com
fills that gaps by providing maps for any indoor locations like airport, shopping malls, convention centers, retail centers, and college campus.
Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create