The HoloLens’ limited field of view doesn’t matter, and here’s why
[Philip Lelyveld comment: article summary. Microsoft is overhyping Hololens. Don't. And market it to a target market that isn't greatly impacted by the limitations (ex. Field of View) of the device.]
For example, one of the situations that Microsoft has demonstrated is the use of HoloLens in a partially finished building, enabling builders, architects, and clients to discuss changes while literally standing in the partially finished building. Even with field-of-view limitations, this application isn't something that can be readily performed any other way; 3D renders lack the immediacy that a site visit provides, and physical models lack the easy malleability that virtual worlds offer. HoloLens doesn't have to be the perfect AR implementation to offer practical value over these alternatives. No, it's not going to offer a perfectly immersive 3D world. But it is going to offer substantially richer interaction than a mere computer screen could ever hope to.
See the full story here; http://arstechnica.com/gadgets/2015/07/the-hololenss-limited-field-of-view-doesnt-matter-and-heres-why/