I like a lot of people have an unlocked iphone (not to be confused with a Jail broken one). So on installing the 3.0 update MMS was immediately available but I suspect, like me, for most it won't actually be active (no little camera icon in Messages is an indicator if it's working or not.
I, like a lot of developers use a Mac and like most I use a local web server to test the applications I am developing; however, I have had a few issues getting my dev environment running exactly as I want it due to the fact I use MAMP Pro. As the only self professed non ColdFusion developer there I decided it was high time I got ColdFusion installed and running under MAMP Pro. So after much Googling and reading I came to the conclusion that there just wasn't a clear set of instructions on how to get ColdFusion to play nice with MAMP Pro. Luckily I'm not easily put off and after a few hours of swearing at my Mac and many install / uninstall cycles I eventually got it working.