I've knocked up a quick prototype ruby client library for redis. So far it supports GET, SET, EXISTS, DELETE and KEYS. Should be able to have a fully compliant library in a few days.
Thanks! your implementation is cool and if you agree will just be the Ruby implementation distributed with Redis. INCRBY/DECRBY are still missing but in a week I plan to have this, all the Set operations inside and release another beta. Then will be the time of replication and compression. And finally I plan to write a fail-over daemon that will handle masters and slaves, check who is running and who appears to be down and act accordingly.
http://github.com/ezmobius/redis-rb/tree/master