Orbit 3DM Cloud is a cloud service which was added to Bentley portfolio with the acquisition of Orbit 3DM.
This cloud service enables hosting & streaming of Reality Data to web browser app (Orbit 3DM Viewer) as well as to plug-in for MicroStation, ArcGIS, Autocad Map and QGIS
More information of Orbit 3DM Cloud current capabilities are available here: https://kb.orbitgt.com/217/products/3dm_cloud
Some of Orbit 3DM Cloud capabilities have already made their way to Bentley iTwin Applications such as the support of 3D Images & Panorama.
In the future, Orbit 3DM Cloud will be able to consume data hosted on ProjectWIse ContextShare.