I'm not asking here weather "such an application would run on Lion", but just like with Snow Leopard users who where upgrading from 10.5, I remember there was a website this guy had done listing most common apps. Legends indicated clearly which ones tested and worked, or nor Would be be such a list for Lion as well for users upgrading from 10.6 ? As developers previews are already out I guess it could be possible to test. Has anyone done this? Or, as users, are we left to own own devices.