Originally Posted by
stupenal
at least it was by accident...i cannot believe the amount of people who are busy checking email on their blackberrys while in flight (yes i am positive they are connected, and not via wifi because UA STILL does not have wifi on their flights).
Per the above posts, the Blackberrys have an "radio off" function. One can read and compose emails for hours from the device memory while offline, and when it is reconnected on the ground, the emails are all sent at once.
Blackberrys work very poorly if more than a few thousand feet off the ground, and not at all at cruising altitudes.