Contant updates, leaves some people behind. I am a diabetic person, who uses various electronic devices to help manage my diabetes. The most significant device I use is my Medtronic Insulin Pump. This in a little computer, which is attached to me 24/7, I have programmed it to deliver my Insulin.. One of the things I can do with this device, is to wirelessly upload data from the pump to my computer. This data is fed into a cloud based system called CareLink, which is strictly controlled. Every-time there is an major release of an OS we have to wait months for people like Medtronic to get there system approved for medical use. I(we) am (are) still waiting for this to happen with OSX Lion. I waited 3 months before upgrading to Lion for this, but game up because my MobileMe syncing would't work across Snow Leopard and iOS5. It has been hard enough to get medical companies to develop software for Mac. In the past it has been unheard of, only in the last couple of years have we seen some support. I love Lion, I just hate having to fire-up XP.. I know that Apple release developer versions of software, but for people who are not desperate to spend extra money on Mac support, Apple could be more helpful here.... I like the whistles and bells of Apple OSX Lion, I love using AirPlay from my iOS devices to my TV, and also to a more limited extent my Mac.. I think the OSX AirPlay mirroring, is going to be great! As will 'Messages'.... But there is a downside to constant releases... some people needing serious software get left in the cold and I end up having to use the Virtual XP, just to access the CareLink Portal, it's the only thing I use XP for these days!