An important note to Global Finals bound Team Managers about Instant Challenges:
As at NH Regional and State Finals competitions, Teams and Team Managers may not bring any devices, including but not limited to cameras, cell phones, iPads and tablets, computers, or timing devices, including wrist watches, into the Instant Challenge building. The team can ask the Appraisers for the time remaining at any point during the Instant Challenge. If such devices are brought to the Instant Challenge building site, teams should leave them with a person accompanying the team prior to entering the Instant Challenge building. Teams will also have the option of checking these items at the Information Booth located near Instant Challenge registration.
Also see this here on the Destination Imagination Global Finals site.