Why can't I do a Deep Traversal (subfolder) Search on the MAPI Public Folder Tree?

Chris, I assume that even doing an FTI of a public store still does not allow for subfolder searching, correct? Are there any third-party solutions that will do this against a public store/hierarchy? Some have suggested Sharepoint. Is it true I can have Sharepoint target a PF hierarchy and index it, independent of the actual folder content location? As part of our email retention policy we are moving documents, etc., to PFs and the clients REALLY want/need to be able to search subfolders.

Scott Bueffel