Chromecast Audio tipped to rival Sonos on a budget

Google is readying not one but two second-generation Chromecast media streamers for imminent launch, new rumors suggest, with one focused on music. While leaks earlier today indicated the new Chromecast would be a faster, more circular dongle than its stick-like predecessor, subsequent tipsters speaking to 9to5Google suggest it's actually one of two products in the pipeline. The second is Chromecast …