Google announced that Maps Data API will be closed next year and they offer a cool replacement : Fusion Tables
Fusion Tables have support for spatial entities but there was a luck of spatial function until yesterday. They announced spatial queries are supported at Fusion Tables.
As far as I see, there are two new functions which are ST_INTERSECTS and ST_DISTANCE. This is a good news that developers can use Fusion Tables instead of Spatial Databases at some point.
Hope they will add more spatial functions to Fusion Tables.