Please make your question a little more specific.
There are a number of popular BlackBerry mobile phones models on the market today. Some of the most popular include the 'BlackBerry Curve 9300', 'BlackBerry Torch 9800' and the 'BlackBerry Z10'.
you have to activate it and they will give you a number or if you got an upgrade then you hav to turn on that phone and turn off the other one.
Blackberry phones are worth the cost. IPhone and Androids are as well. Blackberry phones are worth the cost if you use every percent of it.
Blackberry and the carriers require you have a data plan for all Blackberry phones.
in blackberry world !
Blackberry phones are available at Best Buy. They also have other blackberry devices, such as the Blackberry Playbook. The phones range in price from free (with a new contract) to $199.99 with a new contract.
No. It's only for Blackberry Phones, Blackberry Messenger only works on phones and that's the only thing it works for.
"Blackberry phones are generally not powered by them. However, the makers of Blackberry are looking into that possibility for sometime in the near future."
All Blackberry phones have Blackberry Messenger.
Blackberry phones are available from Blackberry.coom. They are also available from several cellular carriers such as T-Mobile and Verizon. Sprint also carries the Blackberry phones.
oligopoly- because there are a lot of different firms which sells blackberry phones
It is similar to instant messaging. It is only for Blackberry phones. People with Blackberry phones can add people into their chat list (other people with Blackberry phones) and they can talk as in a group chat. So basically it is a group text message.