My lack of coding experience is making digesting OVMS a little slow, but someone has been playing with the CAN Bus on the Leaf to get more detail for battery temps etc.. :) http://www.mynissanleaf.com/viewtopic.php?f=44&t=11676

In addition, this may help anyone brave enough to tinker with the Leaf side of the OVMS too :0 https://docs.google.com/spreadsheet/ccc?key=0An7gtcYL2Oy0dGRaSWl6VTV2eXBQMy1ON2xZSzlMUXc#gid=5