This one is quite amazing:
The Phraselator, made by VoxTec. It contains a database of thousands of phrases, and when the user speaks a given English phrase into the device, the prerecorded foreign-language equivalent is played through the device's built-in speaker. SOF in Iraq and Afghanistan are currently using them.
Ace Sarich, vice president of VoxTec and a former Navy SEAL in Vietnam, worked with civil affairs units in Afghanistan, who found it quite useful. Without the device, a physician's assistant had to resort to pantomime in order to give instructions to an Afghani patient. "So we built it on the spotwe had a lot of medical phrases but they weren't translated into Pashto. Using the toolkit we sat down with the contract translator and built a custom medical module," said Sarich.
Sarich cited an e-mail from a SOF operator in Iraq, which read, "We used [the Phraselator] as a briefing aid to interrogate former Iraqi intelligence officials, and used it a lot with civilians to determine when and where the enemy went. We were able to use the device to get the exact information on a huge weapons cache where unexploded ordnance was. And as a special forces soldier, I was able to use the device to build rapport with the Iraqi population."