I love Atlantis, so please don't take this the wrong way but I noticed a serious flaw with the new gate. There are no moving parts, which is pretty cool. The problem is with the fact there are no moving parts. How would the team establish a wormhole if say, the DHD went down? At least with the older gates they could manually hand-dial the address. This may sound selfish, but I hope there is an episode dedicated to something like this, ala The Torment of Tantalus.
Seems to me the Ancients should have done some beta testing before releasing the new gates to the public