Don't mean to bump this up but yes, yorkiepip, I HIGHLY recommend getting a second yorkie.
I was really worried about Topher's nose getting out of joint, too. That was my
major concern, actually, but we make sure that he still gets as much attention as he always did...and he doesn't seem to be suffering! Sophie is his constant playmate and plaything, so he seems to be a much happier dog. He's getting into trouble less 'cause he's not bored and she just
idolizes him, which I'm sure he loves, too!