I didn't know about the mobile GrandCentral interface until it was mentioned here. I guessed (m.grandcentral.com) and found it. The mobile interface causes the N800 to pop up a dialog offering to play the MP3 file using the default media player. When I do that, the media player opens, but no file is played. I don't get an error message. More detective work is in order. Under Windows, Firefox invokes my media player just fine; under Ubuntu, ditto, although I had to install additional codecs to play MP3. The regular Flash-driven GrandCentral interface works on my N800, although it's irritating and slow. I wish GC offered a simplified UI that restricted its use of Flash to where it makes sense (the audio player), and didn't demand such a ridiculously wide screen. I'll probably switch to the mobile UI on my desktop browser. :-)
