Seeking to tap into music fans' desire to keep up with the latest news on their favorite bands, the Austin-based JamFeed app is borrowing a page from the world of sports fandom. JamFeed co-founder and CEO Cameron Gibson said he and his brother Tyler looked to the popularity of BleacherReport.com's Team Stream app that delivers the latest sports news to fans who subscribe for feeds of specific teams. JamFeed, which launched during the first weekend of Austin City Limits Festival Oct. 3-5, is operating…