[ubuntu-in] apple airport express on ubuntu with foss apps?

[Linux Lingam]

dear all,

anybody has any experience in running apple's airport express under
ubuntu or any other flavour?
http://www.apple.com/airportexpress/

since you can connect wired speakers to airport express,
and then use wi-fi to stream music to them,
am looking for a FOSS app that can do that.
so far, iTunes does that for free-of-cost,
and have noted a few shareware and commercial apps that do that.

google points to several resources and blog-posts,
but am keen to hear from those on this list.
please share your experiences.

regards
niyam

-- 
niyam bhushan