Kinesis Ergo, well known for the contoured, freestyle, and other keyboards, now has a special version of the contoured, the "Advantage LF" (linear feel) available for order.
This keyboard uses the MX1A-L1DW (red stem) cherry switches, which are smoother and lighter than the standard brown (tactile) switches, since they use the same spring without the friction of the tactile "bump".
Pricing of the Advantage LF is $325. It is not available on the website, you would need to contact firstname.lastname@example.org
directly about this model. Part number is KB500USB-blk-LF.
Existing owners can upgrade their Kinesis Advantage, Classic, Pro, etc keyboards by retrofitting the new key wells with the red switches. Kinesis sells them for $90 a pair. Keycaps are not included so you would need to use a keycap puller to transfer your existing keycaps to the new switches.
For these parts you need to contact email@example.com
and provide your serial number, so they include the correct ribbon cable and whatnot for your particular keyboard.
Included in the box extra keycaps for apple/windows/standard alt (since the keyboard is configurable) a nice keycap puller, and a pair of adhesive palm pads.
I got the keyboard last Friday, and it's a amazing to type on. I've been using these keyboards since 2004, but for me the new switch makes this keyboard really shine. It's so effortless to type now! The new linear switches are complemented perfectly by the existing configurable audible click sound of these keyboards, to provide feedback when the key press registers.