A standalone product can have its advantages if it's designed with care to the specific task of timekeeping (which most other PCs or embedded boards aren't). T

A standalone product can have its advantages if it's designed with care to the specific task of timekeeping (which most other PCs or embedded boards aren't). This product (from looking at the schematics) has a true voltage controlled oscillator which allows you to get your local clock to agree consistently within few nanoseconds with the GPS timebase. (UPDATE: It has in Rev. 1.2, not in the latest :-( ). With a realtime OS (for reception of packets), or, much preferable, an Ethernet PHY that allows for hardware timestamping of incoming packets (something like http://www.ti.com/product/DP83640 http://www.ti.com/product/DP83640), you then could transfer this nanosecond precision to other machines on your network. Compared with the ~few microseconds you typically get with traditional NTP on a commodity PC or embedded board. The product linked to on Tindie, as far as I can see, does not have the latter, though.