It's a reasonable question to ask why you should trust us given several changes in the past, however considering this move makes Hyperic invested in a VMware su

It's a reasonable question to ask why you should trust us given several changes in the past, however considering this move makes Hyperic invested in a VMware supported database, I think the likelihood of it changing again any time soon is dramatically lower. Also, since this is a "eating your own dogfood" kind of move, I would actually deem this a very good thing for the product in the long term for scalability and general performance.