Hi Jude,
A number of our staff at HE have received touchscreen laptops over the past year as part of our Windows 10 rollout, and I'm sure that some would also find it useful to work through that screen rather than the mouse from time to time.
That being said, we have no specific priority on this ourselves at the moment. However, touch devices are becoming more and more common, so it is possible we'll revisit this at some point.
Chris Dolby
Project Manager
Historic England