I LOVE Skitch! I use it all the time. I use it so often that it's hard to find the pics I want by scanning the thumbnails that don't show the whole pic.
1) I really want to be able to view a full size pic and then go to the next one without having to go back to the thumbs. I want, I want, I want!!
2) It would be nice within the thumbnails to group them by folders. E.g. 4/5 Design Review Mtg Screen Grabs. Then it would be easier to find what I'm looking for.
3) I have been using Skitch as a whiteboard. I work with a team in a different city. We have meetings via AT&T Connect.