Here are some photos of Climitts on the X. These do a great job keeping my hands warm and dry through winter. All I usually need are a pair of liner gloves under my fingerless bike gloves and I'm set.
Edit 12/7/2010: these are now produced by a company called Bratwear. I know nothing about the company. Here's a shortened LINK to their site and the CliMitts: http://bit.ly/hwHzTo