I've flown a few times since the ban was lifted. Airlines are pretty clear during the stewardess briefings what is allowed and not allowed. You can use your phone but only in airplane mode. They've updated their safety videos to include it as well in some cases.
The international flights are fun as some countries haven't lifted the ban so you never know what they're going to do. The ones I've flown don't allow it when taking off in another country, but do allow it when taking off in the US.