FAA Considers allowing Electronic Devices to be used in flight (or takeoff/landing) [DECIDES TO ALLOW IT]

The FAA is running a study.

FAA considers allowing electronic devices - Yahoo! Travel

In the article, they also reference a NASA study, which has a ton of specific incidents and information.

http://asrs.arc.nasa.gov/docs/rpsts/ped.pdf

Based on the little I read, I don't think Cell Phones will ever be allowed to stay on (even though I know quite a few people don't follow the rule), but maybe things more simple will be able to.