Actually, ...err... Psychotic, the internet sharing feature does work and it is divine! I would get the same error message. One day, I was playing with it and clicked connect while unplugged thinking it would give me some sort of error message. However, I got a broadband connection instead! All you have to do is wait until it reads connected and then plug it in -directly, will not work on hub usb's- and presto! broadband access.
In theory, as long as you stick to the same browsing habits that you do on the phone, sprint cannot tell whether it is the phone or the pc that is accessing the internet. I have been told that it is the download habits that they look for; that is, download a whole linux distro and you are caught!
Concerning the mms, I just reinstalled the all in one cab and then did the registry edits and ...err... BAM! This time, I did not even bother to try more than once; I just went ahead and did it out right as I had heard that this was a sticking point.
Nevertheless, kudos to Kervin on the best rom
now, please someone please tame active sync!!