http://integrate.teamviewer.com/en/index.aspx
"
With the TeamViewer integrations and the TeamViewer API, TeamViewer integrates seamlessly into your daily workflow.
Develop a custom application or integrate pre-built solutions into your working environment, such as ticket systems, CRM or mail applications.
"
Is there anyone interested in creating a special UDF?
EDIT:
http://downloadeu1.teamviewer.com/download/integrate/TeamViewer_API_Documentation.pdf
EDIT:
API is REST and J