Cormu states that the 8 won't work on a 7 which I imagine is true before it's been modified and Nasydave states that it can be modified to work on 7's. Also, when modified, will it work with all 7-pin configurations?
I'd like to purchase one and if I can get away with just buying the 8 pin model then that's what I'll do...call me cheap!

BTW, if these answers have already been mentioned please forgive me. I've been searching and reading many posts and I can't find the answers.