You might be surprised in the coming weeks.
If you've been following the BiteSMS forums you will see some of the posts
by the actualy developers who have said in recent weeks that they've spent
a great deal of time just "making" BiteSMS work with firmware 3.0. Remember
they dont get help or support from Apple with their app, since it replaces
Apple's SMS app. They were celebrating the fact that fw3.0 was finally out
of beta and released to the public so they could stop following firmware
changes and focus on updating BiteSMS!!!
In all honesty, your comment is a little premature.. you miss the fact that
3GS hasn't even been jailbroken yet! How did you expect to install BiteSMS4.x
on your new iPhone 3GS even if DID have the MMS feature???
Just my two cents.