Gothalyptic's post about him using a non-Blackberry plan and it successfully with BES/MDS was the impetus of me starting research on this, and this is why I post this message to solicit more users who are using "Bring Your Own Access" technique with the Blackberry, because, apparently, it does work in certian cases. I am trying to research under which cases this works.

Perhaps it only works with existing carriers that already enables the Blackberry APN even on their non-Blackberry plans. Fido is supposedly a special case since they did enable the Blackberry APN but never commercialized it.

Also, with international roaming, sometimes I am able to roam my Blackberry onto cellphone companies that doesn't even offer Blackberry, yet my Blackberry email works. What happens in these cases? Maybe they added access to the APN because of their roaming relationships?

It does need to be tested out: Which carriers allows generic access to Blackberry's own network? Does the configurable APN in the TCP/IP setup in Options on BlackberryOS 4.0 allow bypassing the need to use a Blackberry-specific APN?

Questions that need to be answered in the course of testing and experimenting, and existing users' experiences.