Lenovo has made two positive announcements today. The first is a useful upgrade to its ThinkPad T series which will see the T410, T410s, and T510 be the first business notebooks to use NVIDIA’s Optimus graphics switching that allows users to switch between the dedicated NVS 3100M video chip and Intel’s integrated chipset, choosing between graphics grunt or battery life. Aside from the use of NVIDIA’s Optimus solution, Lenovo has also announced that it will be shipping the 60 millionth ThinkPad since the badge was first used back in 1992, a series which is considered to be one of the pioneers of modern notebook design and brought several useful innovations such as the first built-in CD and DVD drive, and first to offer built-in Wi-Fi. In order to celebrate that, Lenovo is running a short-term sale that will cut as much as 15 percent off the price of a system from now until Friday.