How do I detect if I have a Super AMOLED or LCD Screen on my Nexus S?

Many sources are citing that the Nexus S is shipping with 2 different types of screen due to Super AMOLED shortages. As I am in the UK it is likely I will have the Super LCD, which I read somewhere is inferior compared to the Super AMOLED. How can I tell which one I have? What are the main differences? **Update:** Found the answer here: http://forum.xda-developers.com/showthread.php?t=1022216 Looking in 'Baseband version' under 'About Phone' reveals that a baseband beginning wth I9020 is the Super AMOLED or I9023 for Super LCD.