Currently you have the TeamCompanion tree view under the "Mail" tab in the left hand navigation of Outlook. It is a bit buried under all my other mail folders. It would be great to make your functionality a "first class citizen" in Outlook by adding a tab just for "TeamCompanion". Clicking on that tab would show just your tree view, instead of combined with Mail. And the top menu would focus on the TeamCompanion tab. This would make it much easier to use. This would also enable opening that view in its own Outlook window so you have a distinct window open for "TFS access" vs. "Mail access" vs. Visual Studio for coding.

The "TFS Work Item Manager" product (Telerik) has this feature and I find it invaluable. It would be great to have it in your product as well so I can use your product exclusively... In Outlook mail you can click on a folder and it automatically displays the folder contents... Similarly, it would be good to have an Iteration/Product Path tree and when you click on a node in the tree you see the work items associated with that node. That way you don't need to set up a million queries to be able to see each individual node, and you don't need to select an Iteration Path and/or product path for each node. In TFS Work Item Manager, they accomplish this by associating a high level query with the tree and then they apply the Iteration Path/Product Path dynamically as another filter on top of that query.

See this link: http://www.telerik.com/agile-project-management-tools/wim-and-projectdashboard/tfs-work-item-manager-features.aspx

The feature is described as "Filter query results using a tree of areas or iterations"

In Visual Studio 2010 / Team Explorer, I can define work item templates so certain feilds are pre-populated (i.e. Product path for a particular feature, iteration path for "Backlog"). I like using TeamCompanion to create work items but I want to use the templates I have defined in Visual Studio. The work item templates are stored locally on my machine and there is configuration in Visual Studio that specifies where they are. Team Companion could look at that value to find the templates and use them when creating work items. It would be good to have the templates in the tree view just like in Team Explorer... double clicking on the template opens a new work item with the fields pre populated.
Thanks! Chris.

Unlike the behavior of the regular search folder of Outlook a work item has to be selected in every querywhere it appears to mark it as read.
E.g. you have a query showing Active Work Items and another one showing only My Active Work Items.
If I get a new Work Item, both queries show me a new entry by a bold query name and a number.
But I have to open both queries and select the item two times to reset that indication.
Would be nice if a query would notice the change on a certain Work Item even when made in another query just like it works for emails.

I would love to have a QR code be right-aligned in the white space at the top of the e-mail.

The QR Code would encode the URL for the work item link to Team Web Access so a mobile user could open it up by using any number of QR Code Readers. This is more for scenarios where someone has printed out e-mails that came from TeamCompanion (i.e. user story details for a daily standup). They could then use their mobile device or tablet that has a camera to snap the QR Code and immediately go to Team Web Access.

Implementation is fairly straight forward. There is an open source QR Code generator for .NET available on CodePlex: http://qrcodenet.codeplex.com/