IR keyboard for Mitac Mio 168

Dear All, I have a mitac mio 168 (which I bought initially because I needed a GPS) I now find that I use the pocket PC facility much more, and rather than carry around 3Kg of portable computer I would like to use my Mio with an IR keyboard. However, having been to the websites of Belkin, Thinkoutside and Pocketop, I don't find anyone that says their product is compatible with the Mio - Any suggestions?

The Mio 168 runs under Window Mobile Pocket PC 2003