Atomlab American Series stems designed by Pablo Tafoya. The direct mount is flippable and the radial mount stems come in 38mm and 50mm. All are designed to fit 1.125 steertubes and 31.8 bars.
Not sure exactly but the steer tube mount ones are tentatively priced at $139.95 and the direct mount at $169.95 I'd keep checking the atomlab website for more details... Oh, and the 38mm one is 114 grams....
at the show they were listed as coming in Black or Black/Red although they also had Black/Silver ones on display. I'm not going to assume anything about the colors, but having things ano'd different colors isn't difficult if there is a demand for it. The pedals I saw were blue. Photo is here