I sent a few comments and suggestions to the feedback address provided in the nice-looking Dragon*Con app
for iPhone and iPad, and got a thoughtful response back, very quickly, from the developers.
One of the nice pieces of news is that they expect to release an update, probably this weekend, that will enable users to have their schedule and other settings synced between their devices. That means we'll be able to browse and make selections on the iPad where it's easier to see everything, and then carry around just the iPhone (or iPod touch, if you're going that route) with your info automagically transferred.
A cool new feature (at least, if it was there before, I don't recall it) is the "Friends" tab. You can give your friends a code, and they get access to your schedule and whatever contact info you choose to share. Note that you have to generate a new friend code for each person you'd like to share with. I suggested that a) I'd rather be able to generate one code and give it to everyone, and b) if they can't do this, they should make it crystal clear that that won't work, but they quite reasonably responded that they want to err on the side of security.