Oh, Luna Voyager, what a long, long voyage it has been for you. We first recall seeing you as a travel-ready alarm clock in early 2008, and then again in January of this year; now you have arrived at a higher-than-expected price of $90, but with the same good looks we expected: a glossy plastic face with a big blue clock face, metal mesh side-mounted speaker grilles, and a soft-touch matte black body that splits into an oversized battery compartment…