Lose the weight and keep the functionality of a full-sized laptop with Toshiba Corp.'s Portégé R100. This slim-line notebook offers a full-sized keyboard, a 40-GB hard drive and a 12.1-inch XGA (extended Graphics Array) display in a sub-2.5-pound package. Microsoft Corp.'s latest IntelliMouse offers wireless connectivity, as well as Tilt Wheel technology, letting users scroll across the page with just a tilt of the wheel. Boxlight Corp. throws its weight around with its latest entry into the ultra-light-weight class of projectors.