| Start Date | End Date | Trade Show Announcements |
| 07/10/2008 | 07/12/2008 |
|
| 08/10/2008 | 08/12/2008 |
|
| 08/14/2008 | 08/16/2008 |
|
| 09/07/2008 | 09/11/2008 |
|
| 09/08/2008 | 09/09/2008 |
|
| 09/09/2008 | 09/12/2008 |
|
| 09/17/2008 | 09/19/2008 |
|
| 09/23/2008 | 09/25/2008 |
|
| 10/04/2008 | 10/06/2008 |
|
| 10/10/2008 | 10/12/2008 |
|
| 10/14/2008 | 10/17/2008 |
|
| 10/17/2008 | 10/20/2008 |
|
| 10/19/2008 | 10/22/2008 |
|
| 11/16/2008 | 11/19/2008 |
|