What is RIM data on a phone?

what does 30 MB Data mean ( im gettin a prepaid phone, and the card says 30 mb data is that a lot Of data?)

I can add the new music but it says it will erase my existing tunes! thats a big NO! Help please? :)

If I have a plan from at&t, can I get a phone from tmobile and use that phone on my plan?

How do I get my multi-media message from my phone I have a cricket phone .

How do you upload a photo from your phone to the computer

is there a one that is both for phone & pc? if so, whats it called?

How can I send mp3 songs to my lg cell phone

How do you get you pictures that are on your cell phone on myspace?

How do you send songs to your cell phone?

Someone order a phone in my name in I will like to get it out of my name