This review of Pioneer PDP508XD is new:
http://www.hdtvtest.co.uk/Pioneer-PDP508XD/
http://www.hdtvtest.co.uk/Pioneer-PDP508XD/
I used to think that plasma televisions are not suitable for console gaming because of the residual possibility of screenburn and their lower inherent brightness (relative to LCDs), but the Pioneer PDP508XD proved to be a welcome exception: image retention was virtually non-existent, and brightness could be cranked up to challenge and perhaps even exceed that on LCDs (not that I'd want to do that anyway).