Several days ago I’ve started writing an application with browser geolocation support. The main problem encountered has been that of testing user interaction with the geolocation service. It is not possible to interact with browser geolocation so you need a way to mock the geolocation api in test environment. I’ve found, this old but still interesting, post wich resolve my problem.
IMHO this is really a great addition to Redis. At the moment redis.io still doesn’t list the new commands, but you can check the website of the original GEO API implementation to have an insight of the commands.