While Microsoft was getting very excited at the prospect of having a product ready to deliver, some people from QA had other thoughts. Apparently, Vista SP1 is not ready for prime time, and Microsoft does not think it will be ready until roughly March. Ironically, the thing that made QA think twice about unleashing Vista SP1 was a report declaring that Vista might have quite a few driver incompatibilities with current machines. And so, instead of finding themselves in the contempt of hundreds of thousands of gamers, hardware enthusiasts, and system integrators everywhere, Microsoft is working hard to make Vista SP1 a very competent product.