"Also, Outlook 2010 has a nice new option that lets you connect to a pre-existing data file when creating a new profile instead of having to jump through all the hoops of creating a new file, connecting to the pre-existing file, then disconnecting the new file."
Does the nice new option keep the names of the Personal Folder? I got the PST files to be seen in Outlook but the name displayed was the file name not the Friendly Name of OL2003 or OL2007. I did use the Advanced Properties option to RENAME the DISPLAY name. For instance, deleted2010.pst is displayed PF - Deleted 2010