The test results you have selected are very old and may not represent the current state of Wine.
Selected Test Results (selected in 'Test Results' table below)
GUI, playback of some types of streaming media such as MP3 for a minute or two, audio control, recording and generally almost everything except playback.
What does not
Playback of streams intended for playback Windows Media Player, which seems to be the bulk of the streams in the presets. These work fine on a Windows box, but under Wine you get a popup box saying Connect Error: Unsupported File Format. For an MP3 stream I tried to play, it got into a situation where after a minute or two of playback, it started looping the same sound over and over. Also this app starts up very slowly (not the case when run under Windows).
What was not tested
Did not do extensive playback testing after encountering the problems above, mainly because most of the streams I am really interested in seem to be in the windows media format.
The big reason I would like to see this work is because to the best of my knowledge there are no Linux apps that maintain a recording buffer (so you can go "back in time" and capture something you just heard) and/or that have a mute button (so you can record a stream without having to listen to it at the same time). As I mentioned above, this is great for recording radio talk shows, especially those with slow talkers which you can speed up later by using an audio player with time compression (such as Winamp with the PaceMaker plugin).
Beta released (20060524)