With capacitive touchscreens, like those found on the T-Mobile G1 and the iPhone, it isn’t possible to use regular gloves and operate the touchscreen as the screen requires electro-connectivity in your fingers. Apple is hoping to remedy the situation a bit by introducing gloves, presumably for use in cold weather environments, that will enable users to operate the touchscreen without directly using their fingertips. According to SlashGear, Apple has filed for a patent for such gloves:

Holes in the ends of the fingertips could be opened to allow contact between this inner layer and the touchscreen itself. They could then be closed up, with the patent describing multiple methods permitting this (including an elastic ring or even removable finger-caps). By not leaving them permanently open, the basic heat-retaining properties of the gloves are not impaired.

There is no indication if the technology will ever make it to the marketplace but the patent was filed in 2007, a day before the launch of the original iPhone.