mk, yw. Yes - interesting point - AUV/UUV Autonomous/Unmanned Underwater Vehicles I believe, instead of Autonomous Operated/Operational Vehicles - I suppose no operator is actually controlling these. Absolutely - there are LARS for a variety of vehicles/devices and even for divers - ADS (Atmospheric Diving Suits) for example that OceanWorks (yes, the same one that supplies Mako with ROV tools) makes. http://www.oceanworks.com/atmosphericDivingSystems.php You're right, depending on how big the AUV/UUV/ADS etc market is, DDI may develop its own or eye an acquisition (which has happened elsewhere)