Mike's PC390 is/was a nice little sander. I think it's brushless and was one of the first with a low profile like an air sander. I think it suffered b/o PC's takeover by B&D. I know they butchered the dust port when they got a hold of it.[/QUOTE]

The 390K was ahead of its time, people couldn't see the price but an air sander sized/shaped electric sander is great. Now you have the great Mirka and Festool brushless sanders with air sander similar ergonomics (the Mirka even has the paddle switch) but there isn't a middle ground sander, I think with the reputation Mirka and Festool are giving this type of sander it might actually sell well now, especially if they made a 6" version.