I believe we will be known as we are known here on earth.  I am not sure what we will look like, but I don't think it will really matter.  We won't be there for ourselves, but for our God.  We won't be in our earthly bodies, but I think we will resemble ourselves enough to know the difference between each other.  I don't believe everyone here will be in heaven though.  Only those who believe and have a personal relationship with the Son of God.  I hope to see you there!