The following is an interesting commentary on the holy kiss, excerpted out of From Holy Kiss to Handshake by Robert Meyers. It touches on several issues -- apostolic practice as normative, patternism, Christian love, Bible translations, literal interpretation, etc. Enjoy (and read the entire article at the link below).
The kiss commanded by Peter and Paul fell by the wayside long ago and there is no serious movement to revive it in the church ritual. Even the most adamant literalist seems quite content to let this particular form be changed, so long as the spirit behind the commandment is somehow preserved. The substitute form is so widely accepted in fact that J. B. Phillips doesn't even bother to translate what Paul and Peter said. He simply paraphrases it in language every modern Christian will understand: "Give one another a hearty handshake all around!"
I heard the final irony in this connection just the other day. A friend of mine in the Church of Christ heard the Phillips version read in a study group and complained vigorously about the change. "You can't trust modern versions," he said. "Paul said holy kiss, not handshake." It did not occur to him that the new translation only sanctified an action which he had already taken.
No one who reads this journal will suppose that it is my hope to revive the holy kiss. The churches I know have troubles enough already, and I am more than happy to join them in expressing the spirit of that commandment through an altered form. I would only urge my brothers to extend to other people the same charity which they find for themselves.
-- From "FROM HOLY KISS TO HANDSHAKE" by Robert Meyers in the Restoration Review Volume 19, Number 7, July 1977