So, last night at the start of HCB day two I loaded the game on my phone - it crashed, and again, and again. Finally after switching phone off and on (twice) and deleting/reinstalling, and after something like five or six crashes I finally got on about 40 minutes after trying the first time.
This morning the same cycle began but after four or five crashes and a restart, I decided enough was enough and deleted the game. Although it's still ok on my iPad the prospect of flipping back and forth between accounts was taking the tedium factor too far, so I deleted that too.
I've been playing since the end of January 2012, so it's a damn shame.