My main concern is the phone jack. If I need a phone jack, I might just stay with comcast internet. Still save some money, but wanted everything on one.
All you need is a phone junction box outside of your house. Even if you don't have a land line, you should still have that and be capable of getting service. If you don't have that, you're out of luck. What they'll do during the installation is switch your phone junction over to their fiber lines. They have a fiber run somewhere in your neighborhood, but the final leg will be copper and runs over the phone line. From that phone junction box, they'll run another set of twisted pair cable that will go into your house. This is what will connect to the gateway. Even if you have phone jacks in your house, they won't be used to make that run. Technically they might be able to if you have cat5 at your phone wire, but I seriously doubt they would. From that point, they can either go to the rest of the house via Cat5 or Coax.
After this you're going to be digital on the phone service. You couldn't even run analog phones in your house if you wanted to.
Also, it's remotely possible if you're very lucky, you may not even need the phone junction box outside. One of the reps I talked to at one point said they were actually running fiber to the premises in new neighborhoods. That's what FIOS is, and it's superior. But I'm not entirely sure that's true and he wasn't lying.
I don't have the TV service. I cancelled that immediately because they didn't tell me about the 1 HD channel at a time thing. They might finally have it rolled out in this area where I could get 2, but I've just kept the internet service for the last 2 years. On that front, it's been great and I love it. May have to try TV again one of these days.
Here's a recent one from U-Verse on keeping analog lines:
http://www.miamiherald.com/2010/05/15/1617...ine-with-u.html
AT&T's current residential offering is up to two U-verse voice lines per location. Depending on the status of the wiring at a given location, a customer may also be able to maintain traditional communications line(s), in addition to the U-verse Voice lines
So it might be possible for them to have multiple sets of wires running into your junction box - one to the fiber drop and another to the traditional POTS network. I know that my guy switched mine over, so at this point I'm fairly certain I can't run analog phones. There may be some extra wires though and I could demand it, it's just their default policy to just cut people over. I don't really care - analog service costs too much.