I set my '720 NOT to automatically go to the iFly navigation program on start up. I check the date and time at the bottom of the system screen first, and if it is correct I tap the navigation icon. If it's wrong (I've even seen the year 2044 listed) then I reboot the device. Mine has always been correct on the reboot, and it's a lot quicker than going all the way into the iFly nav program only to find the date / time is incorrect.
Walter is planing to have the iFly program get it's date / time from the GPS stream directly, instead of from the hardware's system, which he feels is the source of the bad info.
David