BB messenger, please help

Could anyone clarify this for me:

a.BB Messenger ( carrier AT&T) is NOT consider SMS, but as
regular email so there will not be any SMS charge,

b. Can I send MMS(or pics) using BB messenger?

c. Is there any charge if my BB messenger buddy is international for example I am in US, he/ she in Japan/ Hong Kong/ Irelend/ Russia?

Thanks

A.) No SMS Charge. BBMess runs on data.
B.) Yes
C.) Nope. No extra charges for international buddies!

BWhite, you are absolutely correct on A, B, and C. You are so knowledgeable. Just kidding!