Has anyone used the Matias Tactile Pro keyboard or the Kensington Studioboard Mechanical keyboard? I'm in the market for a new keyboard and these look really good. I still have an old Apple Extended Keyboard and think it's got about the best feel on a keyboard. These 2 mechanical USB keyboards look identical. Anyone know if Matias is OEMing them for Kensington? Any info is appreciated. -Hal