I have a logitech diNovo mini. Built-in trackpad that doubles as directional arrows with the flip of a switch; backlight in two colors to indicate different functions; bluetooth; super-small (not for serious typing jobs); good software support from logitech as usual.
Highest recommendation, but it ain't cheap.
A.L.a.E.o.t.U.S., as proven 3/21 - never forget.
Knowledge isn't Truth; it's just mindless agreement.