@Carnival-Boy said:
I think I'm going to stick with 7 and then jump straight to 10 as I expect users will find the transition from 7 to 10 easier than 7 to 8.1. Plus, it means I'll only have two OSs to support (7 and 10) rather than three (7, 8.1, 10).
At this point definitely a good plan. Windows 10 is not far away and looks like it is going to be a really good release.