Just a quick post to clarify the various Vantage Point Apps that are available or currently under development:
1. Vantage Point for Windows 8.1 (available here)
2. Vantage Point for Windows Phone (release planned in March 2013)
3. Vantage Point (Capture) for Windows Phone* (under development)
4. History Explorer for Windows Phone (uses some images from the Vantage Point database)
* In general I have found the Windows Phone form factor (such as my own Lumia 920) is too small to make this app really useful though I hope to be able to revisit this project at some point in the future.