The Ezurio Blu2i modules are available theough Farnell. I use them in an OEM product (simply because I did not want to have the issues of certification etc), but I don't buy at Farnell prices ;)
I believe they are about =A375 in small quantities from retail distribution, maybe less. If you can't find them in US distribution, it could be because it's a european company (Ezurio is a management buyout of TDK Europe). Farnell sells a little devkit unit for the beast as well (a little expensive, although necessary as the module sits on a very fine pitch connector that I have to hoard to make sure I'll hit production).
Cheers
PeteS