The blackberry has these features:
Blackberry messenger
E-mails
SMS
Play/pause,next song, back song buttons on the top (on the curve models)
LED light
App store
Trackpad/rollerball
QWERTY keyboard
You would need to have a blackberry plan if you wanted to use things like BlackBerry internet and messenger etc.
To get Blackberry service, you would have to register the device for a special Balckberry data plan.
Before you can use internet on an Blackberry phones, you would need to register the device for the special Blackberry Data plan. Any regular data plan would not work on Blackberry phones.
You can use the Blackberry Storm for phone and text. You don't need internet to make it work. On the other hand, if you want to use internet on your Blackberry Storm, you would need to register the device for the special Blackberry Data plan as any regular data plan would not work on Blackberry Storm or any other blackberry Phones.
NO
If you just want to use the phone and text functions of the Blackberry, then you don't need to, however, if you want to use data, then you should register your phone for a Blackberry service as any regular data plan would not work on Blackberry phones.
If your Orange SIM is registered for a Blackberry Data plan, then it would still work on other GSM Blackberry phones. Now, if it's just registered for a regular data plan for just text and call, then it would work on other phones.
if u looked on a different website you would find out
It is as long as your services includes a full data plan and messaging plan.
Yes as long as you have a data plan with blackberry
If you are on a data plan its free. If you aren't, you can still use it if you have wifi. For example, if you have wifi in your house you can go on the internet for free when you are at home. If you have a data plan it allows you to go on the internet even if you dont have wifi.
Blackberry and the carriers require you have a data plan for all Blackberry phones.