I just purchased the “Belking PS/2 Ergoboard”:http://catalog.belkin.com/IWCatProductPage.process?Product_Id=98781 from Newegg. This is the keyboard that my co-worker Phil has been using for a while now, and it might be the best non-Microsoft ergo keyboard out there (that’s under $50). I’m pretty it will be to my liking (since I’ve already tested it out), but I’ll reserve final judgement until I write a review.
Also, a PC Watch “reviews”:http://pc.watch.impress.co.jp/docs/2006/1012/elecom.htm the now infamouse gear drive keyboard (Japanese). The reviewer confirms that the gear drive mechanism does really allow you to press any part of the surface of the key to push the key down. It also appears to have decent rollover support as well. Coming it at under 4000 yen, it’s an interesting product that people can try without incurring too much risk.
Mean while PFU introduces “two super high-end Happy Hacker Pro models”:http://www.pfu.fujitsu.com/hhkeyboard/hhkbprohg/. Both custom made, one with traditional Japanese varnished keytops, and the other with a brushed metal aluminum case, coming in at $5000 and $2500 respectively. I kid you not.