When trying to install FreeBSD 8.2 from USB memory stick the kernel boots from the USB-Stick and the installer menus work and let me partition and everything.
However when it comes to actually installing from the USB-Stick it is not found.
Checking with the emergency shell showed that there are no
/dev/da* entries visible.
This happened with hardware ASUS P8 H67-M Pro, Intel i7-2600 with EFI BIOS.