Saw this and thought it might be of interest for Vanagonauts who have converted to modern engine platforms with an ODBII port (Bostig, Subaru, non-diesel VW I4s). It's a bit pricey, but not unreasonable if you're interested in tracking fuel economy and possibly other engine data, and it's much less bulky than having a laptop in the cab.

http://www.automatic.com

At the moment only available for pre-order, it's expected out in the fall.

Jarrett
'89 Bostig'd Westy