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Don't do it. I thought the same thing and got rid of my 3GS for a BlackBerry Tour. I regret it every day, and BBM is annoying and overrated. It's cool for like the first two days, and then it gets irritating.

I am anxiously awaiting the release of the next iPhone so I can finally drop this piece of s**t BlackBerry.

The only reason I'm glad I have a BB now is because I'm a lot more excited to get an iPhone back again, especially a new generation one, which should be awesome.

This.
 
Don't compare bbm to texting. If youve used bbm heavily before you know how different is. The way convos flow and it's feature are different than texting. That being said, I regret now switching from my 3GS and hopefully will switch back this week. BBMs been awesome for me, but those apps, Safari, iPod, etc etc overweigh it i believe. I can't believe how much more fun i had using the iphone than the blackberry, the experience was just better...the battery...not so much :p
 
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