For the scale-curious, the AT-AT looks spot-on... Resources put it at 15m tall, which is inaccurate to even the films, so ignore that... it's between 20 and 22 m tall in the films, and has many clear shots.
Eyeballing the pictures above (which have minis in them, great!), the AT-AT looks DEAD on in-scale. It's one of the few things I'm sure I'm going to buckle down and pre-order.
The AT-ST I'm assuming will also then match up to the AT-AT and figures in scale... Kudos to WOTC putting out some really quality pieces that minis gamers have wanted for YEARS. Literally decades now.
The problem now is that the Alliance has many ass-whippings coming their way if they don't mount up some armor. Most minis gamers have been fielding rebel (and Imperial) tanks for years... Customs, kitbashes, whatever. Time to bump up those numbers though with AT-AT's ont he move!

Though mini gamers have been using Kenner AT-AT's anyway, but I digress.
That is sweet, thanks for the pics Brent... I didn't get any good shots of it at the con so your picture more than makes up for it. You rock man!