Joel makes a good point - Good software takes ten years. His advice is that you should make ten year product plans. It's interesting, I have some personal goals that are up to 20 years out, some that are in the 10 year time frame, and more that are in the 2-5 year span. Most products I have seen have an outlook of at most 2 years (well, normally 1 version). It's hard to convince people to try to spend the time to think about ten years out - after all, all good ideas should be implemented in the next milestone.