Stylize Map to Black & White for better visibility of markers
I'd like the ability to have the road-based map stylized in black and white for better visibility of the markers. I know that OpenMaps has this option, not sure if I've seen this in Google's native API, but I have seen this desaturation trick work:
http://jsfiddle.net/alan1986/R5PXH/1/
This really makes the markers "pop" but you do not lose the usefulness of the roads/boundaries.

Love the idea. The consideration on our end is that Google has limitation on how many styled maps are loaded in a day. While I don’t see this as a huge use case, it’s what we have to consider before just implementing this.