scolaner :
On the other hand, as I understand it, Tango and SLAM are quite different beasts. Tango has multiple components (some specialized) plus software. SLAM just uses any smartphone camera plus software.
Tango is a software stack that sits atop various hardware to provide SLAM features in a consistent API. It's not tied to any particular CPU, GPU, or sensor hardware, as they've demonstrated by getting it running on x86 & ARM CPUs and Nvidia, Intel, & Qualcomm GPUs. Sensor hardware they've used includes ToF, structured light, and stereo.
In point of fact, they're only now reaching the level of exposing full SLAM. Previously, they've not exposed much in the way of
Mapping. The API mostly just exposed
Localization, giving you the device's pose (location + orientation). They added 3D reconstruction, only somewhat recently. The latest release includes tantalizing floor plan mapping and 3D mesh extraction features. Here's the full release history:
https://developers.google.com/tango/release-notes
Tango is fine for smartphones and tablets, but should be great in an AR HMD, as people have been experimenting with. On the Google+ Tango feed, someone recently posted this AR visor to hold Lenovo's Phab 2 Pro.
https://plus.google.com/+AsierArranz/posts/Hz5EtWFJSWs
BTW, if you want to see some things people are actually doing with AR, the Google+ feed is not a bad source. Takes a while to sift through, however.