MarkedMan says:soofsoof, I'm curious what you meant when you said the original nike+ site did it better. For me, the graph they show doesn't match what I actually ran. For instance, last week I ran 1 mile then a 5 minute walk, repeated four times. The Nike+ site shows only two slower speed events. The Runner+ site shows all four accurately.
Last year I suggested numbering the Y axis and bringing grid lines across the duration of the run so you could see what your actual pace was at any given point. Would this type of thing help you?