I have seen a few posts regarding the same thing, but figured the more people letting them know the better.
I updated to the new version of AF on Friday before leaving work. After I got home I loaded it up and it played the little startup video, then "checked server for account data". It then brought up the screen to "create and name your new character".
I thought, well crap. I had already thought about starting over anyway, because I didn't want any of the "massive resource" bugs to hit me while I was leveling normally and i did it on accident once.. so anyway.. I started up my new character.
I played the "demo stage" and filled the bar up. It asked if i wanted to go to the store or keep mining, i hit store, and it pushed me back in the mining screen.
I kept going with a full bar... then decided to try to end it by pushing the blocks to the top of the screen. No luck. it "cleared them out for me.
I can't play at all now and it really sucks. Any ideas of when a fix will be released?
I forgot to mention this as well, because I was being rushed out the door for lunch.
I restored my iphone from a backup over the weekend on Sunday. When I brought AF up, my user acount data was intact on the OLD verion of the game, but after updating the game version again, it was gone.
I am having this same issue. Phone crashed and needed a reformat, no saved backups. Aurora Feint didn't find my account, so I started over from scratch (no big deal) but can't get out of the demo mode. When presented with "Keep Mining" or "Buy Challenges" either button takes me back to the mining screen. Basically, I'm stuck mining endlessly, can't exit to any screen because of the demo mode. D'oh!
P.S. I'm SO happy you reverted the app icon back to the leaf. It's so much better!