I'm curious to see what Apple can bring to the table as they have access the best technology ( in-house mobile CPUs/GPUs) that theoretically could put them a generation of two ahead of any competitors as things stand. Plus they have an army of devs they can call/lean on to develop content for the platform.
You can criticise Apple for being overpriced and anticompetitive. However when they enter a product marketplace they quickly tend to end up dominating it. If any company can make AR/VR mainstream it's Apple so I'm keen to see what they deliver.
Something tells me most companies are more interested in producing AR glasses rather than VR headsets. Though I'm sure those two markets will merge in time.