Right then, had a quick go and pasted below, caveats as follows:
a) Daytime and the curtains are linen white, so fairly high ambient light
b) Not calibrated yet
c) taken with i-phone
Spent some time last night playing around with the calibration section of the Viera App and managed to get some further improvement on what was already a pretty good picture based on the 'out-the-box' presets, but just by having a look around the calibration app and from reading Strapped's feedback about his VT post-calibration it's pretty clear there's still more to be had out of this panel than I've currently managed.