I have a suggestion for the start gadgets. It would be nice to be able to create a local html file to be displayed in the gadget, much like the way you can create custom scripts in search startlets. This file could use javascript to fetch data from other websites and display it in the start menu. This would have the advantage of being able to create gadgets specifically for start++, instead of relying on externally hosted iphone apps that do not always display well. Also it would open the door to some fun possibilities like having javascript games or the like in the start menu.
I think it would probably be possible already to reference local html files, however this would not work with the nice packaging functionality you currently have.