SwitchList: Feedback Wanted

If you tried out my SwitchList program for the Mac when I mentioned it a couple weeks back, I'd appreciate any feedback you've got.

I made the app public in hopes of figuring out what next to do with it. I knew it worked well for my layout and was a great improvement for me over car cards and other routing systems, but wasn't sure whether it would be useful to all of you out there. I wasn't sure which features to add or bugs to fix to make it particularly useful. Should I stay with the small layout focus or aim for more complex layouts? Should I finish the feature for spotting cars at particular doors of an industry? Are there better ways of printing the switchlists? I'm also trying to decide whether to keep working on it on my own, or whether there are others out there who might have features they think are worth adding.

If you tried it and had comments (and especially if you tried it and found it wouldn't work for you), I'd appreciate hearing your comments, either on this post or via e-mail.