Velo Orange now has Mixte frames in stock. These are lugged chrome-molly frames made for VO in Taiwan. You can get the frame in 3 sizes and I suspect only one color at this point. The introductory price is $499, but listed as $700 on the website.
The Mixte is a step-through frame that is ideal for a city bike where you need to dismount quickly or often. The frame is unisex, not a "ladies bike." Read more about the debate over at EcoVelo.
As with other Velo Orange products, expect high quality and the proper braze-ons for fenders, racks and the like. The frame accepts 700c wheels and tires up to 38mm. The horizontal dropouts would work well with internally-geared hubs if you decide to build your bike up that way. VO usually has a discount on their fantastic components if you purchase them at the same time as the frame.
***NOTE: The frames are not yet ready to ship out to customers per VO 3/27/2010 due to a shipping delay.