Under my current contract, I basically pay for 300 minutes a month (things work a little different in the Netherlands).

I get charged 1 minute for 1 (160 character) SMS & 2 minutes for 1 MMS sent.

Personally, I would rather see them fix the current bugs with the SMS counter not working properly and other bugs like losing the minutes logged after a soft reset or going into the settings without changing anything before they start adding more bells and whistles.