No. It is no different than texting or browsing the internet while your phone is charging.
Of Course! You can preform any function on a phone while charging, including calling and texting!
maybe...
you dont.
it shouldnt be dangerous. its like using a laptop while its charging or using your ipod touch while charging.
because you use it while its charging
If you look at your blackberry phone while it's charging, by the battery icon there is a wire looking symbol with a plug located right next to it. Once your blackberry phone is done charging the symbol will disappear indicating that your blackberry phone is done fully charging.
No. This will not damage your phone and will in fact make it charge faster.
Use a LAN line, pay phone or a neighbor's/friends' phone.
Yes you can - it will just take slightly longer to charge.
If you are charging your device on a laptop or desktop, your charge time will be much slower. From a wall plug, it will be faster.
I have been told that this is indeed possible.