AA now has approval to use iPads instead of heavy paper charts on all its 777 flights:
http://allthingsd.com/20111214/american-airlines-pilot-on-why-he-wont-be-stowing-his-ipad-during-takeoff/?reflink=ATD_yahoo_ticker
But what about Words with Friends?
As to concerns that pilots will be playing games rather than reviewing flight manuals, Clark says not to worry.
“Absolutely not – no Angry Birds in flight,” he said. Indeed, there are only two apps loaded on the iPads — the customized program for reading flight charts and a PDF reader for reviewing the plane’s manual, if needed.
http://allthingsd.com/20111214/american-airlines-pilot-on-why-he-wont-be-stowing-his-ipad-during-takeoff/?reflink=ATD_yahoo_ticker
But what about Words with Friends?