Figure this could become a useful reference. Additions (or subtractions) are more than welcome!
NOTE 1: There exist, at this time, several manufacturers of MX-compatible switches. This list specifically pertains to Kailh switches (Kaihua Electronics Co., Ltd.), and is not meant as a list of all keyboards containing MX-compatible or MX-style switches. Thus, exclusion from this list is not a guarantee that a keyboard is using Cherry switches. Also, the list is currently incomplete, and will require further additions (and possibly subtractions) before reaching a fully dependable state.
NOTE 2: I'm pretty far behind on list updates at the moment. So, for the time being at least, this list should not be regarded as complete.
Known
Razer BlackWidow 2014
Newmen GM-10
Genius M1
Genius Quake 87
Genius Quake 104
Zalman K500
Shogun Bros Cross Blade ("Mixed Stroke" version)
ViewSonic V1
Armaggeddon Strike Eagle MKI-3
TT Poseidon Z
Some Max Keyboard customs (when specified by customer?)
Tesoro Lobera Supreme (will probably also carry Max Keyboard branding in the future)
Rapoo V7
Rapoo KX
Xenics Scorpius M10tfl
Rosewill RGB80 (identical in every visible way to the previous)
QPAD MK-10 (M10tfl variant, this time with a white color scheme)
Nixeus Moda (yet another GM-10 variant)
Keycool kc87 (2014- )
Rapoo V500
V-OX G11
Noppoo Lolita Spyder 87 / 87 LED
Suspected, but NOT confirmed -- Do not assume that these have Kailh switches until it can be proven!
Noppoo Lolita 87 identified as Gaote Cherry MX clones, though the "Spyder" version does use Kailh
Delux T20 (8 mechanical keys, with domes otherwise; originally used MX switches under switch covers for the 8 keys. Recent website images, however, show yellow switches, and Delux is listed as a Kailh partner. Listed as "suspected" because the switch covers prevent getting a good look at the thing. Some sellers may still have units with MX Red switches as of this edit.)
Aula Ghost King 87/104