However this is a working version based on 0.5.2 with the necessary changes for for NeXTStep. These changes will go into the source distribution, but playing catch up means that source distributions may not always compile for NeXT.
I've tested this on Black and Intel, and it seems pretty good. 0.5.2 is a fair bit quicker than 0.5 was.
To run this by double clicking, make a file called .uaerc in your home directory with the text:
-r/whatever/your/path/to/kick.rom
this will allow Uae to find the Amiga ROM image which is required.