There really doesn't seem to be much that I can see happening on the classic OS front in terms of new software development, not even in the shareware/freeware area, so OS X seems to be a necessity rather than an option.
PowerPC Linux. Yellow Dog Linux. If you want the BSD family, NetBSD or OpenBSD. Yes, unixish (or un*x) software is a "necessity," because development = support. (I consider Googling forums and emailing strangers legitimate support, much better than I ever got over the phone) I've tried messing with the "Open" Darwin core, but without the fancy Quartz GUI that Apple provides in OSX, Darwin doesn't have much to recommend it. [
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Java is also a problem. If MRJ was updated... [xx(] ]'>
If I did not care about support (formal or informal) or updated software or games, I would salvage old Servers from DEC and Sun, not old Macs. [
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