IdeaVault - RPi dashboard
I agree with the pricing of the app, who could deny John’s reasoning? With all due respect, a dedicated iPad just to display a dashboard? sounds like diamond studded car. It is a overkill and I would argue you ruining the destiny of your iPad. It deserves more care than hiding behind your old TV/Monitor.
Raspberry pi is the right candidate for this task, though I guess Arduino is also cheaper solution, but from development perspective (I’m not sure, I have come across some nodejs modules), I would suggest to go with Raspberry Pi with Html5 (http://shopify.github.io/dashing/).
Wish I could develop a quick prototype that is compatible with Panic api for Raspberry Pi appstore.