For D6 I used gmap, which allowed me to easily create map-based views and include proximity filters and sorts. With D7 I've been tempted to move to OpenLayers - I like the idea of learning one powerful mapping tool that can be used to solve more problems than presumably gmap could. However I can't for the life of me find anything that looks close to stable for proximity filters and sorts. I find this a bit surprising - does anyone know of anything I've missed? The best lead I've found so far is this sandbox project, but I haven't given it a go yet.
So can anyone recommend a way, with or without OpenLayers, to have Views-based mapping and proximity filters on D7?