Samsung gave their point of view about OLED mobile displays in a keynote speech. They like OLEDs because of the great picture quality, environmental issues and touchscreen compatiability.
Samsung says that by 2010 we will have OLED laptops - and 5" and larger displays will be 'the mainstream'
In 5 years 28% of laptops will use an OLED display (yeah, exactly 28%). OLEDs will only cost 10% more than LCDs by that time.