Here’s what’s online on the SEEED wiki : seeedstudio.com/wiki/Xadow_P … me_Adapter . Note that the “Get One Now” button just goes to a Wiki page detailing the graphic 
Looking forward to an answer soon … according to the shipping timeline my RePhone stuff will be shipping on Jan 15th. I will buy a Pebble Time after I get the RePhone kit (anyone want a slightly used but still fully functional Pebble Steel? Gorgeous watch, but I really want to do the Rephone programming stuff soon…)