I didn’t know where to put this message as I see it more like a poll to give some info about the GPU targets of your current projects.
On my side, I’m not longer working on software development but research so I can target GeForce 8 only with all extensions possible to maximize fun. I’m also using Direct3D 9 in a very programmable way time to time. For my personal project it’s quite the same but + Direct3D 10.
1 year ago, I used to work on a software that was targeting OpenGL 1.1 … nVidia, ATI, Intel chips and even Windows software mode … The project is currently moving in two types of renderer: one based on the fixed pipeline for compatibility and one based on the programmable pipeline. Some feature were targeting GeForce 6 and Radeon X1*** but with compatibility patch until OpenGL 1.1.