OpenX Hosted Solution Invitation

Yesterday, I got an invitation to try OpenX hosted solution beta program. This hosted solution can serve up to 25 million ad impressions per month. If the “free version” is not enough to serve larger traffic, there will be premium hosted packages.
Compared to the self-hosted software, it’s a little bit different. I installed OpenX independently few months ago. I haven’t decided where I will use my OpenX account, but I will.