Logitech's Performance MX Mouse series has long since been a favorite with enthusiasts and workstation professionals alike. Introduced to the market several years ago, it was high time Logitech revisited and refreshed their flagship general purpose mouse with the latest technologies and creature comforts. And boy what revamp this is. Whether you consider its expanded connectivity options, super-sinister sounding "Darkfield Laser" tracking technology, slick "infiniscroll" capable speed-adaptive scroll wheel, or it's super geek cool polygonal textured finish in its thumbrest area, just about everything was amped-up in this MX reincarnation. And that caused us a hard-stop pause for a double-take of Logitech's latest mechanized rodent.