My startup: Simplified Cloud Cost Management (pre-launch)
cloudability.comThe website looks really nice and I'm guessing those who are using many vendors will find this helpful.
Will you be able to provide as detailed information about the EC2 billing as Amazon? (as an example)
Yes, absolutely. This is where the product started, tracking EC2 billing. You have to pull down the raw usage data too as the daily Amazon bill updates can be a bit out of sync.