This is abstract interface for different storages, as file system, memcache, mysql, key-value databases, whatever :) In plans internet services' apis, smart query params for sql databases, graph databases with same interface with sql-bases, cloud storages as S3 and CloudFiles, mq-support with long-time get, visual configuration and reloading by signal for cloud solutions.
This thing gives you one way to get anything in the world! Like user info from twitter api or local file or rows from sql-base or message from amqp
This is early scrach, you can see example, you need start server
And play with client