I've seen here a reference in http://redis.io/clients to this Smalltalk client:

The last commit is kind of old (2011)

1. Are you using it? 

2. Is anybody interested in maintaining a Redis Pharo client here?

Why Redis you might ask?

Well, it's fast and has a very interesting feature: Notifications

 

With notifications you can subscribe observers and publish object events (I'll leave the rest to your smalltalker imagination) on persisted objects.

This opens many possibilities in real-time smalltalk based apps that scales nice.