Even with this LTE network comming out I dont see a reason to "Skip" getting the X. I mean sure LTE is the next best thing, but... It prob wont be available in your area.
If it will be then I guess ok Skip the X.
Personally I prob wont get an LTE device until 2011-2012 or until they have my area covered.
I have a friend that works for Verizon in the Atlanta area. Atlanta is one of the roll-out cities..... but I don't know that 10 seconds faster upload download makes that much difference for me.