We're nearly ready to release libshout 2.1. New features include a non-blocking mode and theora support, as well as some bug fixes. It should be ABI-compatible with libshout 2.0. We'd like to get as much testing as possible before releasing the library. If you feel like trying out the new non-blocking code that's great, but even just dropping it in to replace your libshout 2.0 is helpful. You can find the source here: http://people.xiph.org/~brendan/beta/libshout-2.1pre0.tar.gz Please report back successes and failures. We'd like to release in about two weeks. Thanks!