My carrier (in the Philippines) has a prepaid BlackBerry service and allows "unlimited" usage as long as I'm on the BlackBerry APN.
A few questions about that:
1) Currently, I don't have "APN Settings Enabled" checked in the Advanced Options/TCP area and APN: is empty.
2) A few applications give me a chance to use a special connection method, like SocialScope for example.. out of which BIS and TCP seem to be options. If I select TCP, it doesn't seem to work. BIS works. But is BIS == BlackBerry APN?