Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Urban Jungle Street View - Explore the world through Google Street View: Jungle Mode
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Google NightWalk - An audio Streetview tour around Marseille
AWS Mobile Services - Storage, Analytics, Push Notif. & SMS Delivery SDKs
Cat Street View - Explore Japan... as a cat.