I believe the article (or someone) claims this is the first Mac emulator which I believe is wrong. I think the first is MagicSac for the ST. However, given the power of Amax, Emplant and ShapShifter (through some dubious code) the Amiga's emulation ability really puts Daydream to shame.
-P
Actually article on OSNews says this DayDream emulator is de-facto first Mac Clone, not first
"emulated" Macintosh.
Also short original article on Flickr talks about there was sort of "official" support to MacOS 7.5.
For a certain period in the nineties (1995-1997) Apple licensed its system to third party manufacturers whom started producing Mac Clones.
In the end Apple decided that Macintosh market should not became as PC World of IBM Clones (maybe clones were better then official Macs, or perhaps Clones manufacturers granted bad support to customers and thus damaging Apple in various ways), so Apple withdrew any licences.
I think this was the legal situation of Daydream.
On the other hand AMAX and Emplant were "NO OFFICIAL" clones and their boards sure could mount Mac ROMS but these ROMS should be purchased directly from Apple, that in parallel with withdrawing licenses also stopped selling official ROMS replacements.
I strongly suspect they made this move right just for the fact Amiga emulation ran better than original Macintosh machines ;-) plus it multitasked with Amiga side, making Amiga equipped with Emplant boards sort of supercomputers! :-D
[EDIT]It was Steve Jobs returning at Apple in 1997 that stopped selling licenses to third parties.