| The $3 recognizer: simple 3D gesture recognition on mobile devices Recent countries visiting this post |  |
 | 7 | United States |
 | 1 | |
 | 1 | Australia |
 | 1 | Japan |
| The $3 recognizer: simple 3D gesture recognition on mobile devices Recent countries visiting this post | |
| 7 | United States |
| 1 | |
| 1 | Australia |
| 1 | Japan |