[Edit by Mark Rejhon: Please note, this post was based on outdated information. Some of the information in this post is not possible on most carriers.]

Doing research.

I have discovered few number of people are doing a "Bring Your Own Access" technique to get Blackberry email on prepaid SIM cards and other cellphone plans. This appears to be possible on other carriers.

1. Your SIM does not need to be Blackberry provisioned.
2. Your SIM card MUST have a GPRS data plan (preferably unlimited)
3. You must buy a 3rd party BES/MDS hosting service (starts at $10 per month)
4. You will get NO BWC.
5. Your push email will come from an Exchange mailbox instead rather than BWC.
6. You do, get access to Internet apps such as WebMessenger.

This is a technique that makes Blackberry email on Fido possible, as well as on other cellphone networks not equipped for Blackberry; as long as they have full GPRS data capability.

I need to hear from more other people who are using Blackberry in this particular manner.