I'm not sure if people here are interested in Ipod Music Stations but I have posted two of three articles about evaluating their sound quality.
Part 1 deals with the listening test methods required to produce accurate, reliable and valid measures of perceived sound quality.
Part 2 (posted today) summarizes some recent competitive benchmarking listening test results on three popular Ipod Music Stations of comparable price.
Part 3 will examine different approaches to measuring their acoustical performance with the goal to try and predict listeners' sound quality ratings.
I'd be interested in hearing your feedback on these articles.