I own a Sony Xperia S and a Mac. Problem with the Sony Bridge for Mac is that it’s terribly slow. It takes minutes to get access to your files. I also had a problem that I couldn’t access files that are added to the device since the ICS (4.0.4) update. With the latest upgrade (6.1.A.2.45, 26-aug-2012) this issue is fixed. This blog should also work for other phones, if other steps are needed please add a comment, then I’ll update the article.