Few keyboards are made wireless and
backlit at the same time because of backlighting's power requirements.
I would check out the Kinesis Freestyle Edge
, which is wired. Has stupid blue backlighting and available only in US-ANSI, otherwise I would have got one myself. Also, expensive kits to lift them up are extra ...
There are and have been lots of split ergonomic keyboard DIY kits made by hobbyists and small garage vendors, but you have to be at the right place (on the Internet) and at the right time to order a kit when it is available. Pretty much all have been wired and only a few have had backlighting though.
The trend right now is towards minimal keyboards with keys in a orthonormal grid though... (which I personally find more silly than beneficial)
Originally Posted by The Pook
you probably can't find anything because your ergonomic requirement is silly. unless you have a disability, using a keyboard properly negates any need for a funky form factor.
No. A good ergonomic keyboards can help prevent
keyboard-related injuries such as RSI, carpal tunnel syndrome and shoulder fatigue.
The most direct benefit IMHO is larger separation between the hands, which can help your shoulders.