oki heres how it stands, well stood last time i checked.
º Dreamemu - Plays no commercial games however does run a few homebrew demos and a few emulators that have been ported to the dc, and the dc bios makes no difference to Dreamemu so dont go hunting for it, it makes no difference trust me.
º Dreamer - Nice fast dc emu, but its now so old that it has cob webs hanging off it. No use in bothering with it dude.
Go visit - http://dreamemu.emulation64.com to get Dreamemu, or if you wanna know how the new betas of it are going i sugguest asking BinoX, although i dont want to lay any more work on the poor bugger as hes a busy man