> If you consider an alternative, just make an app and stick phone on a rifle, sure, that will work for 90% of the stuff you want to do, but it would break and

> If you consider an alternative, just make an app and stick phone on a rifle, sure, that will work for 90% of the stuff you want to do, but it would break and that's bad. Given that soldiers are currently getting by with something that works 0% of the time, the assumption that 90% isn't good enough seems highly suspect. Exactly how many more soldiers will be saved by developing a true heads up display versus an off the shelf app running on a ruggedized phone? This seems like an obvious case of a failure to actually define requirements and make real engineering decisions.