I need 60 - 300 of these. It's not out yet, so I'm possibly going to end up buying a load of Worldtracker Enduro Pros
http://www.trackingtheworld.com/products/enduropro/Someone really needs to get their shit together and make a combined gps / accelerometer with a decent battery life and data storage capacity. The number of papers I've read this week where researchers kludge things together shows there is a market.