Thanks for all of your input! I enjoy hearing so many different perspectives.
I definitely would not be purchasing a porkie mentally thinking it is a "Designer Mixed Breed" - instead that it will be a mix of characteristics - physically, intellectually, and tempormently (is that a word?

) of two great breeds - a yorkie and pom.
At this point, I am leaning more towards a purebread yorkie, but have sent a list of questions to the porkie's breeder to learn more...just in case.
Keep the comments coming!