Akiban will be coming to our meetup group next week; however, this is under the assumption we have enough people to attend the event. This one will not be one to miss. Akiban helps assist you in optimizing your MySQL database through the use of "Table Grouping" by using Akiban as a MySQL replicant. This is much like a materialized view except with greater flexibility. Read their use cases and figure out if it would be a benefit for you to attend: http://www.akiban.com/akiban-use-cases
I can tell you personally we have been evaluating utilizing their technology for implementing some of our problem queries and with the founder and CTO willing to speak to us, this would be a great opportunity to see where they might be headed in the future and where they might fit in with regards to NoSQL solutions like MongoDB.