i heard that the battery door is alot better and so are the button. they also give u white=usb,case,2.5mmheadphone yes as in to hear music with both ears.
The only real diffrence is who offers the phone. Right now T-Mo is the only one who is selling the White Pearl, you can buy an unlocked one online but it will cost you a pretty penny.
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Unlocked 8100c w/ 1 gb microSD, BSE total body skin, and rubberized case or silicone skin.
I guess I as well got lucky because I honestly just bought my BlackBerry Pearl(8100) from T-Mobile on the 23rd of January 2007 and it came with stereo-headphones and so did my friend who got a white one on the same day. We both ordered online. He upgraded and I added a line.