Project Velocity calculation in VSTS 2010 Beta 1

To calculate the project velocity, TFS summarizes all remaining work of all work item types in the iteration. Imagine you have a breakdown of work items, such as at the top level a User Story, which is broken down into Tasks.

The project velocity should be calculated by summarizing the Remaining Work of all tasks. But when you open the work breakdown in MS Project and publish the results, the Remaining Work is also stored in the User Story. This causes that the Project Velocity is doubled.

Microsoft has confirmed that this is a bug in Beta 1. It will be solved in Beta 2.