What moblie service to get, part 2

[Joe Pfeiffer]

Jonathon Suggs writes:
>You can "dial" up, it will be really slow and probably unreliable.  I 
>think 9.6k is as fast as you can go.  Not to mention that when you 
>"dialing in" you will be using your cell phone minutes.  A data plan 
>allows you to use GPRS, which is a newer (still pretty old though) and 
>faster connection up to 56k.  The down side is that you will probably 
>have to sign a contract.  You will then either get an unlimited plan 
>(~$20-40/month) or a pay as you go plan (~.15/kb).
>
>Let me know if you want more details.  And anyone else feel free to 
>correct any mis-information.

I'd like as many details as I can get, please.