oh man, don't get me started on unfinished projects. on some broken hard drive somewhere, there is a pd impulse tracker clone that i worked on for weeks and weeks, and eventually gave up on because the gui couldn't hack it, and the patch got too complicated.
then, there's the dx7 clone that very nearly got finished and left aside for other work. (it was way more than just a standard 6 op fm thing, i had researched pretty much the whole thing, and had patched most functions of the synth in good detail),,,but then it just got too hard in the end and i left it unfinished.
i think, that this is probably the 2nd biggest shortfall of pd. the first is certainly the gui. my commodore 16 could handle graphics better than pd does. but a close second is the 'unfinishability' factor. once you start making large and complicated patches, they inevitably get really hard to complete.
actually, this library project was born from the fact that i had made heaps of stuff as part of other patches, and needed a place to keep it all safe from the trash bin.