>Mini USB took care of that for the smaller stuff, but Granddaddy Nokia still needs an adapter cable, as the specs were not in place back then - a small drawback
Since we have three Nokias (though we call it nokla - a dumpling), we have three power adapters in the three places where we may need them :). They are at least internally compatible.
But the headphone for E71, with left and mic cable switched, was a sufficient reason we seriously hated Nokia for a year or two.