Redis Store aims to be a toolkit for your Ruby applications, it natively supports sharding, master/slave replication, marshalling, timeouts and namespaces. Plus, it's really easy to use with the most popular frameworks, such as Ruby on Rails.
When I joined the IFAD team last September, I had big problems to deal with all this amount of informations and to clone projects from GitHub then make them running on my dev machine. The most common issue is the missing and/or outdated documentation.
In the past months our geolocation service has been changed from a somewhat flaky IP lookup to the new HTML5 W3C draft. Our users noticed the difference and they are happier of the new level of precision.