Before I tell team members they can (if thy cant), if someone has a Trimble account for Ipad just to use the viewer, not a licensed user, are they able to log in to Connect and view shared files there?
Many that view these in our company complain about the Ipad (I dont have much problem there viewing but rarely use it) and with no PC based viewer any longer looking for options.
You can use the Link Share function of SketchUp - that way folks do not even need to have a Trimble account to view anything. They just click a link and the model opens in a browser.