After hearing of the thousands (hell, two thousands!) of bug fixes and enhancements that Windows 7 users will be seeing as they make the journey from Beta to Release Candidate, you'd have thought that we'd heard the last of all that for a bit. But not so! It seems that Microsoft's own Engineering Windows 7 blog will be letting the improvements trickle out as they are addressed. So brace yourself for some exciting plot twists, such as improvements to the taskbar thumbnail overflow and various jump lists, the trimming of sound schemes to enhance system performance, and our personal favorite, the addition of multitouch zoom to Windows Explor