I’ve owned a Sony Ericsson HBH-DS970 for nearly 2 years now ), and my current iPhone 3G. I also use it occasionally on my laptop. It has worked fine in Windows XP, Vista & Windows 7. Getting it to work with Linux, however has been an EPIC FAIL. The last time I tried it was probably a year ago, and I just gave up in frustration and continued to use my EP-630 as the earphone.