I have not had a CDMA BlackBerry for quite awhile so I have to feign a little ignorance on this application. I checked with a few friends about this issue and it seems to be true. If you have ever written a text message longer than 160 characters on a GSM BlackBerry you know it will let you keep going and break the SMS into 160 character chunks and send them separately. This is called Extended/Multipart SMS and lets you send up to 6 messages combined though it still charges you for each one.
This works like a charm for me on AT&T and T-Mobile so I always assumed this was the case for Verizon and Sprint. As far as I can tell it looks like I was wrong… It looks like both Verizon & AT&T both support Extended SMS on their networks as far as I could tell but it is not supported on the BlackBerry CDMA OS.
CannonSoft let me know that they have a solution for all of you long texting users. They created a new application called Beyond160 that lets you send text messages beyond 160 characters on Verizon, Sprint, Alltel, Telus, and Bell and other CDMA carriers. With Beyond160, you can type as much as you want, and when you send, it will automatically split the message into multiple parts (each 160 characters) and send them in sequence. And best of all, Beyond160 messages get routed through the normal SMS Outbox with Delivery Confirmation just like the built-in app.
Let me know what you think!