I use Mensch too, but let's not credit Apple too much considering Menlo in turn was a fairly minor tweak of the Bitstream Vera Sans Mono. To do so would be almost as annoying as people claiming Apple created Webkit out of the blue rather than starting from an open source project, or that they created their kernel out of the blue, or their OS tools, or windowing operating systems in general were created by them, or the personal computer or the smart phone or the tablet. Apple is very good at polishing things, at integration, supply chains and marketing; extremely good, and they even have a very good record on fonts - but don't listen to Jobs' story on this or you will think we would still be using the command line for everything - however they get orders of magnitude too much credit when it comes to innovation.