Get real people!
I fly the 145 for a living and have gotten airborne on loads of occasions with one or both of our personal phones inadvertantly left on. the 'chirrp' as it loses the cell is invariably heard on the i/c prompting a 'switch off' asap. never seen any evidence of interference, and that with the phone(s) on the flight deck!
don't believe everything you read in the papers.
