Businessweek has managed to track down an insider with information on the plans of both Sprint and Kyocera, and he (or she) has been talkative enough to confirm that a Kyocera Echo is all set for launch on the Now Network at an event later today. Sprint's tagline for said event was that it'll deliver an "industry first" that makes us believe "the impossible is possible," and with all due respect to Kyocera, neither of those really sounds exactly like the company's upcoming Android handset. The first time we got wind of the Echo, however, it was accompanied by a tip about a Windows Phone 7-based