How about an app that will do my shuttle, empty my groover and doesn't drink my beer!?
On a more productive note I think this would be cool... An app that had a food 'shopping list' that could be sorted by each meal and would have an option to record where it was placed in what cooler/dry box. You could then produce an itemized list for each meal sorted by each cooler/dry box. Ultimately you would know by meal what you are looking for in each cooler/dry box, and would allow the shopping process to occur quickly and keep the cold in the coolers!
This although could lead to organizational dysfunction!?
I'm also not big fan of 'technology' on the river but if allows for more time to enjoy other activities (and promotes cooler management!) then maybe it's a good thing!