ogg has not been legally tested. The developers read through what they believe to be the relevant patents and declared themselves clean, but no one knows what t

ogg has not been legally tested. The developers read through what they believe to be the relevant patents and declared themselves clean, but no one knows what those patent holders think and what patents may have been missed. Only when a company with deep pockets releases ogg vorbis in a high volume device will we see who is waiting to come out of the woodwork and start a patent suit. For the tiny and shrinking set of people that want ogg vorbis, it isn't worth the legal risk. (Sidebar: I don't mean to imply that vorbis is vanishing now, but as storage gets cheaper I expect mp3, aac, and vorbis to drift away in favor of lossless formats which are not subject to the body of psychoacoustical patents. I rip at 192kbps AAC or 256kbps mp3. Lossless encoders end up around 750kbps. I never fill my 8G iPhone. Using lossless on a 32G device would be a no brainer decision.)