Which apps do gapless music playback? Are there any apps around that are good at gapless audio playback? I listen to a lot of music that continues from one track to another and the stock app puts a small but noticeable gap between tracks.
Try the latest Museek player. It has support for gapless playback. You need to enable it from within the ADVANCED settings in the app.

There's also PowerAmp and Winamp which seemingly offer decent gapless playback quality.