Microsoft announced a partnership with phone maker Flextronics to market <A HREF="http://news.zdnet.com/2100-1035_22-5574442.html?tag=zdnn.alert">a new cell phone platform</A> running Windows Mobile to phone makers and service providers. The two companies said they have jointly developed a new phone platform called Peabody--a blueprint that cell providers can customize and which is designed to cut production costs. Peabody runs on GSM (Global System for Mobile Communications) networks and GPRS (General Packet Radio Service), the data delivery arm of GSM networks.