Apparently this works for all sorts of phones, I've been using it about 3 days now and no spam sms or calls thus far. So take it how you want. I assume your responsible for sms costs and whatnot where they apply. http://mobile17.smashsworld.com/
I did one to my 8700c's cingular email address and I never got the email (I didn't check the webclient to see if it even got delivered either)
but when you send/upload the mp3, they give you a URL, I put it in the Internet Browser on my 8700 and it told me that the file was not ready/available, I waited about an hour and tried again on the blackberry and it was there and I was able to download it to the 8700c. I did about a 25 second song and it was fine. I didn't try the pics or anything else, and not sure hwo to get it to work with the cingular email address (or maybe cingular blocks it?)
But so far no spam to the phone so I dont knwo if it'll start or what.
thought someone might be interested in it, so far working for me for now.