Indeedio. Sidekicks require a specific APN to communicate (via an encrypted link) with the Danger Service Delivery Engine. So, only T-Mobile's (and one or two other operators) specific APN is allowed to communicate with Danger. Everyone else will just be headbutting the firewall. Even if they did know the specific Danger IP address.
As the above poster points out, everything but voice and SMS goes via Danger...
You could always get a SIM from Cingular to make voice and SMS calls when you're out of TMo coverage.
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Indeedio. Sidekicks require a specific APN to communicate (via an encrypted link) with the Danger Service Delivery Engine. So, only T-Mobile's (and one or two other operators) specific APN is allowed to communicate with Danger. Everyone else will just be headbutting the firewall. Even if they did know the specific Danger IP address.
As the above poster points out, everything but voice and SMS goes via Danger...
You could always get a SIM from Cingular to make voice and SMS calls when you're out of TMo coverage.