I wish that too! The OSM data license is similar to GPL in that it requires, when mixed, the resulting derived work to still be shared in an open license. Having Google's data to complement OSM's would be a huge benefit for researchers that can use geographical data for all sorts of purposes, users of course, everyone really. As someone who contributes to OpenStreetMap and avoids Google Maps (for privacy reasons, not map reasons), I have nothing but respect for how much data they gathered. I'm just sad they keep it locked up.
