Hi Dan,
Got another suggestion for you (no idea if it's possible, will leave that to you!)
How about a strip of letter tabs for folder navigation? Much like PocketInformant3 has.
So it would be like: abc|def|ghi etc. to quickly take you to that area of the file list.
Don't know if this is possible on the PPC, but I use letter navigation within windows on my regular pc all the time so I thought it might be worth a try on the PPC.
Seems like it would be of greatest advantage in large folders like Windows & My Documents.
Maybe it could be an icon that pops up the tab strip when you need it? Maybe it coould pop-up when the number of folders/files exceedes a certain number? (this would probably need to be a preference setting to us or not use)
Just a thought.
Regards,
Rich