Hi Patrick,
Thank you for contacting Syncfusion support.
Yes, Touch style support is available for our UpDown control. Touch mode can be achieved by enabling the “EnableTouch” property available in SkinStorage. Please refer to the below code sample.
Sample : http://www.syncfusion.com/downloads/support/forum/125596/WPFUPD~1382583694.ZIP
Also refer the below UG link for your reference.
Please let us know , whether it is helpful.
Regards,
Keerthana J