The Wowpen is a next generation input device that sports an ergonomic pen-shaped design which caters to those with carpal-tunnel. Its 2.4GHz band RF communication allows for use within a 50m range. Handwriting input lets you easily jot down notes while performing any tasks. Prices start at $49.99, availability has not yet been announced.
From the article: “It was actually very responsive. Although I wasn’t able to sign my name with any fidelity, I was able to make curves and circles, which are pretty difficult using a standard mouse.”