I want to warn you, guys, that i am waiting for 2 months for a module for my z4.
For the first time I tried to contact them it may 2006 with no result. Then, in november 2006 I accidentally noticed, that they changed something on the website. I wrote them another email, and they responded, answering, that they had problems with the website, and - yes, they are going to grow the businness. So, on 14 dec 2006
i transfered the money via PayPal. After that, they replied no more on my mails. And the phone they indicate on the website, does not work.

Here are a few links regarding the same problem.
http://www.bimmerboard.com/forums/posts/161494/
http://www.bimmerboard.com/forums/posts/161494/

Best regards to you all, take care!
Agassi