I have a Verizon ENV2, and I have IMing for no charge, because each IM counts as a text, and I have unlimited texting. I know that's how it is for Verizon.

However, my friend has a Cingular Samsung (she's not sure which model), and has unlimited texting as well. It gives her AIM as an option, but she's not sure if it'll charge her.

Help?
Thanks!