| A visual, open-ended approach to prototyping ubiquitous computing applications Recent countries visiting this post |  |
 | 5 | United States |
 | 4 | |
 | 1 | Russian Federation |
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| A visual, open-ended approach to prototyping ubiquitous computing applications Recent countries visiting this post | |
| 5 | United States |
| 4 | |
| 1 | Russian Federation |
| 1 | Sweden |