The first consideration is which tool/toolkit/language, and that almost always induces analysis-paralysis in me. Back when I was doing typography when a new to

The first consideration is which tool/toolkit/language, and that almost always induces analysis-paralysis in me. Back when I was doing typography when a new tool came out I'd always do a type specimen book for whatever typeface I was currently fascinated by --- which is a bit better than "Lorem ipsum", or by extension, "Hello World" --- perhaps all GUI development systems should offer an equivalent to Steve Jobs' "5-minute word-processor demo" for NeXTstep?