Logitech yesterday introduced their newest wireless notebook mouse, the V450. Following along the lines of the V400, the V450 is also a laser mouse, but has a much more ergonomic shape to it. From the press release:

"The V450 mouse's soft rubber grip and contoured shape provide exceptional comfort. Its battery life of up to one year minimizes the hassle of changing batteries. Laser technology delivers smooth cursor control and precision tracking on virtually any surface. And, Logitech's 2.4 GHz digital cordless technology provides a robust wireless connection."