Im a lucky one that got mine at Walmart on the 14th, a day before the official launch.
Well anyways, I called in a few days later to see if they had any in stock because I planned to return mine and try an get a replacement to see if the replacement was having any issues like mine is having now. Well, a guy picks up and I ask him "hey there I got my Droid X there a few days ago and was wondering if you happen to have any in stock because I was going to exchange mine for a different one if you did cause Im having issues with mine". He asked "What?" like he had absolutely no clue what I was talking about. I repeated my question and he proceeded to lecture me about how they only sell them on a 2 yr contract now. I kept telling the guy that I purchased mine at full retail price and he wouldnt listen to me. I had no idea why the hell the guy was blabbering about something I didnt ask about. He kept cutting me off when I'd try an ask him a question and then he hangs up on me...
My experience with Walmarts phone department has been terrible and its the one and only time Ive ever bought a device from there. Well, come tomorrow, Im bringing mine back in, returning it and taking my business somewhere else. Long story short - Terrible customer service with lack of knowledge as well as extremely rude AND with a terrible return policy.
P.S. Oh and also, today I went into a verizon wireless store to get a case for my phone. I wanted to see if they had a device on the floor to mess around with and they did so I decided to see if it was any different then mine in terms of responsiveness and speed. The home screen not only scrolled from screen to screen really smoothly, opening apps/anything was extremely smooth which is really odd because Im having nothing but issues with mine being slow and sluggish. Not sure if they get different devices or not but Im returning mine.