Just heard from Suunto that at last they will be releasing a version of Dive Manager for the Mac OS. Apparently it will be available in spring. I wonder if it will come complete with an app for the iphone/pad? Anyhow it's good news. At the moment I have win7 through bootcamp solely for running dive manager. I still find it the best program for my purposes with many parameters eg temperature, cylinder pressure, surface interval, etc etc all just downloading automatically, and I love the tissue saturation graphs. Have tried the current batch of mac dive software and they seem to miss a lot of the data requiring manual input. I had given up on a mac compatible program from Suunto, having used a Suunto since 1995, so was surprised that at last it is in the pipeline