Having used Apples and then Macs continuously since the 1990s, their keyboards are everything you would wish for except for good ergonomics. They sure are beautiful and have incredible engineering to produce good touch feel and spacing.
Wonder how many people know that in 1993, a full year before Microsoft launched their first ergonomic keyboard, Apple released an adjustable, ergonomic keyboard. You can still buy one of these for about $50 on eBay, some even with the original box.
Don’t expect to buy one and plug it right in. This keyboard connects to a Mac via an Apple Desktop Bus (ADB) plug. The last Apple computer released compatible with this keyboard was the Power Macintosh G3. You can however buy an ADB to USB adapter on eBay if you wanted to buy one and then actually use it with your Mac. I have no idea if this will work with a PC. Having plugged many Mac keyboards into PCs and vice versa, I don’t think this is going to work well with Windows.
The Wikipedia article noted Apple released this during a time when computer manufacturers were being sued for poor design which let to repetitive stress injuries. Because Apple stopped selling these or even making a version two model, either there was little commercial demand or this didn’t fit into Apple’s overall designs…or a little bit of both.
I’ve bookmarked the eBay search and may try to pick one up at some point. Would make a cool but completely impractical review! If you do want to read a review, here’s one from 1993.