Please make Personal Heatmaps for all activity types
I can't see why heatmaps are currently limited to cycling and running. I can't imagine that much extra code would be needed to enable this feature for other activity types.
I really want to access my heatmap for hiking, and also for walking. It would allow me to easily see which hills/fells/mountains I've climbed already, and also all the places I've been walking.
What would be even better (but take a lot more work) would be to be able to combine multiple activity types onto one heatmap, with different colours for different activity types.
And while I'm making suggestions for heatmaps, a choice of background map would be awesome - Google landscape, and OSM are ones I'd particularly like. If OS maps could be made available in the UK, that would be great too.