Multiple touch monitors in Windows 8

The question I have - and I've asked it elsewhere only to get crickets - is how Windows 8 Touch behaves in a multimonitor situation. For example, if I get a Wacom Cintiq 24HD Touch in the middle flanked by say 2 x Dell S2340T's, making the right Dell the Metro monitor, would all the monitors register touch properly in Desktop?

Depending on which comes first, I'll either be looking to rebuild my DIY, or buying a test Windows 8-loaded workstation (neither the HP Z820 nor the Precision T7600 are yet shipping in W8 configs) as my first Windows 8 'proper desktop', and touch will definitely be there. I'm just not sure how well it works in the above sort of scenario.