What is OLHeatmap ?
OpenLayers Heatmap is a group of hacks to render heatmaps over OpenLayers. At this moment is very ugly and dirty but I have some ideas in mind to make this a more presentable project.
Why that name ?
OLHeatmap stands for OpenLayers Heatmap so the answer is: Lack of imagination, if you have a better one you can propose a change.