Details about Sony's new handheld have been trickling out for months in the form of spec sheets and fantastic footage of its quad core capabilities. But we didn't know how much it would cost or when we could get our grubby paws on one, and now we know: $249 for WiFi, or $299 for the 3G model, which Sony's Kaz Hirai confirmed will be available exclusively through AT&T, with both models shipping worldwide in toward the end of 2011. Prices are (Prices are 24,980 and 29,980 yen in Japan, euro 249 and euro 299 in Europe.)