The Visual Studio 2010 IDE is simply great and came up with many new features within it. I have found one of the great and innovative features in Debugging style in VS 2010 Professional Beta 2 that is Pin/Unpin Object/Variable Inspect or Data Tip.

while debugging in visual studio we generally used mouse over on the object or variable to inspect the current value. This shows the current data items hold by the inspected object. But this is for limited time, as long as long the mouse is pointed to that object those value will be available. But in Visual Studio 2010 Beta 2, there is a great feature to pin and unpin this inspected value. We can pin as many of any object and there sub object value also. Please have a look into below picture.
Apart from that there are many features like Drag and Drop Tip, Add Comments on tip etc. Here is my one complete article on CodeProject. Please have a look
Excellent Debugging Features in Visual Studio 2010 Beta 2

Please provide your suggestion and feedback.