In case anyone wants to check out the live demos of the apps that Matt Raible and I built for this presentation check out the Grails app: http://bike.ubertracks

In case anyone wants to check out the live demos of the apps that Matt Raible and I built for this presentation check out the Grails app: http://bike.ubertracks.com/ http://bike.ubertracks.com/ And the Play app: http://hike.ubertracks.com/ http://hike.ubertracks.com/ The code is at: https://github.com/jamesward/happytrails https://github.com/jamesward/happytrails Both apps are a bit dated at 7 months old because Grails and Play have been progressing pretty quickly. With Play 2.1 on the horizon it's probably time for a refresh. And as someone pointed out, I've need to do a Scala + MongoDB + Single Page App version. Just haven't had the time. But in case anyone is interested, someone did create a Spring MVC version of the app: https://github.com/brentlemons/runhappy https://github.com/brentlemons/runhappy