Also, it's iPhone-only. Following the direct download link from an iPod or iPad yields an error. Guess I'm sticking with Boxcar for iPad push notifications.
Same here, except using Notifo.
Also, in my experience, there are often weird consistency errors in the App Store when something new is rolling out. (I could only see it on my Mac for a while before it appeared on my phone.) Try again in an hour.
Loading data is pretty fast on wifi, and the app is certainly nice to look at, but not taking any advantage of local persistence seems to push the web-centric worldview a step too far.