In addition to its main office in Cupertino, Apple maintains a number of satellite offices in different cities in the United States. One such office is located in Boston, and according to industry sources that spoke to Xconomy (via 9to5Mac) Apple’s Boston team specializes in speech technology and may be working on Siri improvements.Based on their online job profiles, we can say that members of the Apple speech team here are working on Siri, the company's voice-activated virtual assistant. Details beyond that are hard to come by, however, even for others in the field. "They won't tell us what they're doing," says Jim Glass, who heads MIT's Spoken Language Systems Group. “We can only guess.”Apple's Bost