RTFD - 1Hz update rate. Sorry - no 10Hz yet 
NleahciM - finders fee? Sure - email me spark@sparkfun.com
Sorry it took us so long to get to the forum. The EM406 is tremendously popular all the sudden. I’ve been uber busy with emails and office junk.
Please - if any customers hear about a new technology, let us know! We listen! We want to get you the parts you need! Besides, we get to play with them too
-Nathan