Cyrus64 has updated his Icarus Site with screenshots of the Dreamcast Bios and also this news:

After this screen the bios tries to communicate with the gdrom-controller via ‘low-level’ access (as opposed to the normal gdrom system calls method for obvious reasons since the bios sets up these calls itself and contains its own fs for loading the ip.bin and 1stread.bin from the gdrom) which is currently not emulated, but this is a very pleasing start 🙂
After faking some lowlevel gdrom dma access, I now have gotten the bios to run to the main screen. This screen however displays itself fairly slowly and continuously dmas textures whilst this is occurring, and there are still many issues to sort out for this to work fully.
[These are the first pictures of the dreamcast bios running under emulation]

Head on over http://icarus.boob.co.uk/ to find out more and see those great screenshots.