oligopoly- because there are a lot of different firms which sells blackberry phones
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Sprint provides service for Blackberry smartphones as well as many other phones. Boost mobile also is a carrier for Blackberry smartphones and is cheaper than sprint.
The phone what is good for making appointments is most probably the blackberry or iphone however there arre know to be other good phones what will make appointments easily as well!
Before you can use the internet on a Blackberry phone, you would have to register the device first for a special Blackberry Plan, as regular data plans will not work on these phones. And data plans are not free services with any service providers, including AT&T.
Blackberry's aims and objectives are to gain a large part of the market share and make large profits. They have succeeded in this area to an extent through their uses of proprietary messaging technologies.
no i cant seem to find an easy way yet. only thing i can find so far is to use blackberry desktop manager (or your phones deskptop software) to export contacts to your computer, them copy it to an sd card. i was looking more for a way to do it solely on the phone itself, since my blackberry has a sim card and an SD card.