Unified Inbox folder for recent unread mail items

I’m using Outlook with multiple accounts configured. This is a mix of Exchange, POP3, IMAP and Hotmail accounts so they each have their own Inbox folder.

This sometimes makes it hard to keep track of all the latest (unread) messages as it requires me to visit each Inbox and sometimes sub folders as well.

Is there any way to create a special view or Search Folder which combines all these Inboxes into a single list of (unread) emails?