It’s update time, which means hacking the minimum requirements again. More details on how to actually change the numbers are in the Aperture 1.5 post and comments, but this time I only seemed to need one change to the binary:
0xb8e8: 40 9E 00 88 -> 48 00 00 88
and the Info.plist minimum memory requirement had to be adjusted down for me as I only have 768MB on the 12″ PB. I seem to recall that the other entries may have been for unsupported graphics cards, but these appear to have been relaxed somewhat: all I can say for sure is that my 1GHz 12″ PowerBook is happy with just the single binary edit (and I’d not need the Info.plist hack if I just bought a new memory module…)
Update: It does appear from comments that the video card detection does need more edits, so if you don’t have a 12″ 1GHz PowerBook you might want to try:
0x0b8e8: 40 9e 00 88 -> 48 00 00 88
0x0b984: 40 9E 00 88 -> 48 00 00 88
0x17810: 40 9E 00 e0 -> 48 00 00 D8