I just moved to a new apartment in Round Rock and was stoked to see that AT&T offers their new fiber internet. The guy came today to hook me up and we talked a bit. I mentioned that advertised speeds were theoretical maximums and that I doubted I'd be getting 300Mb/s he said "Oh yeah..you will". I have never been so happy to be wrong in my life.
Sorry I know this seems bragish, but I couldn't help it. This is the future and If AT&T or Google doesn't offer it in your area yet (I know it's in very few markets atm) send em an email and let them know you want it, and have all your friends do it too. Can't hurt, right?