I have sent invites to everyone who PMed me, hope you all got them!
As for names, I think it really depends if you wnat your friends to follow you, what exactly you are pinning (i.e does it matter if your name is there? Are you going to be pinning pics of yourself and your kids or controversial stuff?)
I used my blog name and my internet name shows up. I don't think your name need sto be ewitty, it's not like a forum, but I also don't think there is any need to have your name and surname there. Just make up a name.