I've just been experimenting with converting our old .INF CAB builder script to a Windows Mobile CAB project. So far it's easy and intuitive like its big-brother counterpart; I like it.
One thing that threw me off was the requirement to manually add the .LNK extension to shortcuts created on the "Files and Folders" page. I did eventually find something about it in the documentation, but I had to go digging for it -- and that was only to see if it was there after I had solved the problem for myself. It seems like, if Advanced Installer knows it's a shortcut, go ahead and append the .LNK extension for me. I don't have a choice -- either the extension is there and the shortcut works, or it's not and the shortcut is broken.
This is also the sort of thing that might stump a new user making their first CAB installer -- especially since Windows Mobile hides file extensions, making it all the harder to detect a problem.