unless sony is experimenting with grid array backlighting (or similar technology capable of the same effect) on the level of individual pixels - it would not be correct to say it has the same contrast. while this would certainly be an interesting idea, given current prices of high density grid array units, the prices are likely going to be pretty steep.
oled, like plama provides its own light output at the pixel level. lcd which does not create its own light requires a backlight to work. while lcd is a cheap technology for the masses it has always struggled with contrast since its limiting factor is always backlighting.
while completely true that oled has some major pitfalls you might want to remember that most technologies started off with similar problems which improved as the technology evolved. you might recall if you are old enough that early lcd screens had horrible ghosting, lag and burn in issues and people were all on the crt bandwagon saying how it was superior. where is crt now? oled certainly has some promise if it can be improved but this is not to say it is the only good solution.
interesting read but i'll reserve judgement until actual testing and more details about the technology surface. manufacturers have a bad habit of making their product seem better than it really is with PR.