Have you guys tried the built in blackberry messenger yet? it's like the txting client built in the BB that allows you to add other people who have blackberry based on their phone's pin number. You can type/send files/camera phone pics etc, and you don't get charged by text, it's free to use but you can only add other people who have blackberry's on them lol
Here's my BB pin if anyone wants to share funny furbaby camera shots and chat
pin: 24446a99