Being a scuba diver I never seen one until recently.
After this bad joke we can come to some real infos. Harald is working on the kernel full steam ahead. Good progress so far. Sometimes faster sometimes slower.
From my side I concentraded on the OE side so far. Booting into a fso-image is working now. With every new hardware feature the kernel gets support for we can start to integrate it into FSO. GPS and BT are good candidates as they are just attached to UARTs and the enabling/disabling via GPIOs is already in the kernel.
A 'cat /dev/ttySAC2' already gives out some NMEA stancas. SiRF III binary protocol has to wait a bit longer. Next week I'll have some fun with making use of the GPS in frameword. Stay tuned.