We will keep iterating it and making it simpler and clearer. This is a first pass to explaining what Super Owl is. It is an iPhone app with a service attached to it (the editorial service) and I think it is important to say this because we are not selling an app in isolation.
Not really sure about what you mean when you say: "audio programmes from independent DIY audio makers" sounds like sophisticated something.
Did you find this sentence confusing or do you think it sounds unnecessarily sophisticated? The intention is to give potential listeners an understanding that the content comes from independent makers as well as larger more well known broadcasters.