Low-profile clicky switches are coming to market, but as is so typical, nobody wants to give away any details. Most Chinese switch manufacturers are useless about letting anyone know what their products are. The only confirmed specs are from Kaihua, for PG1350 series, for which I don't know of any confirmed customers:
http://www.kailh.com/gb/Productdetail.a ... uctid=1584
I didn't bother trying to decipher the forces (it was enough trouble trying to transcribe any text at all, as it's all scrunched-up text in an image that you can't copy and paste) but the figures are 50 g and 60 g.
As for the other types, whatever they are, you'll have to wait for someone to actually bother publishing details. Tesoro are using some other brand that's alleged to be Gateron or Greetech or whatever it was. Gateron I guess, as Greetech GT04 series is a different design:
http://www.greetech.com/en/showproducts.asp?id=501
The specs on those are pretty useless. The page says GT02 but GT02 is the MX clone; these are GT04 according to the keyboard switches navigation panel. They're also only 2.5 mm travel (as noted in the navigation panel but also based on the keystem height).