Sorry. Some sort of server glitch at our end.
Similar reports in http://community.wolfram.com/groups/-/m/t/413617 .
I don't know if someone at Wolfram did something or what, but the iPad app is suddenly working again after not working most of the day.
Had pro for a few weeks. Worked great until just now when i updated my iPad 2 to the latest (8.1.1) OS. All i get is that weird message that is utterly useless. "Hmmm... Invalid appid". Tried validating my mail now, but that did not help...
