[Geekcop]

I suppose it's necessary because not having such a plan makes a BB useless. Now as to why you need a plan different from your TP probably has something to do with the technology used for a WM device won't work for a BB. However, you do not need BES unless you have a need to access your corporate email. If you're looking to access personal accounts (i.e. Roadrunner, SBC, Gmail, etc) you'll do fine with a standard email/internet package. I have unlimited email/internet for $30/month through VZW