Was able to use the app a couple of times while out of time and it was very useful and very speedy - even over Edge and 3G.
I second macpro's ideas, though my preference in order would be:
1 - Profiles for items to show on which device. We have 2 iPhones and a Touch. I would love to be able to give my wife a subset, give my Touch and different subset, and give myself full access. We could add our Phones / iPod Touch devices as 'devices' in the UI and then have a way to specify for each INSTEON device, which device or devices to show it on. Definitely not simple, but a good idea.
2 - Log file. Every once in a while, I need access to that. Being able to scroll back through it and even go back and forth date wise would be great.
3- Upcoming Time/Date actions.
Overall well worth the upgrade.