What constitutes a 'message' on the iphone?

[Panda Knits]

I just got my phone today and I know that the message allotment is made up of at least texts and IMs, but what about emails and tweets? I'm just curious because I signed up for 200 messages (which I'm sure I'll have to increase soon), but I want to know if there are other things that I need to be careful of using. At the moment, I'm using echofon and accessing my email directly from the mail icon, if that makes any difference.

Thank you for your help.

[Jason]

no email and tweets would be just standard data usage that is being used a text message would be derived from using the text fuction on the iphone and maybe the instant messengers and im not even sure if that exists because you actually sign into yahoo as you use it program wise and AIM. And you have unlimited data so using twitter or emails wouldnt be considered part of the messaging side of your plan