Yes, Atlus is bringing Radiant Historia to North America and the Nintendo DS game should be in stores before the Nintendo 3DS arrives. Atlus is shooting for a February release.
Nintendo Power has a spread on a bunch of Japanese games. The magazine has articles on Radiant Historia, Ace Attorney Investigations 2: Miles Edgeworth, Solartorobo, and SaGa 3: Lord of Time and Space – Shadow or Light.
While Radiant Historia has some of the Radiata Stories team such as character artist Hiroshi Koishi, many of the key team members are fresh off Shin Megami Tensei: Strange Journey.