Gaurav Kishore , the Samsung version LCD screen is compatible with both the Google nexus one and the HTC desire, while the Sony version can be used only on the HTC desire. "Since Samsung introduced a lot of own smartphones with AMOLED and Super AMOLED screens, they weren’t capable to fullfill the demand of all display customers like HTC. Therefore HTC announced that they will switch from AMOLED displays to SLCD for a few devices like the HTC Desire and the Google Nexus One." [http://smartphoneblogging.com/2010/09/nexus-one-slcd-vs-nexus-one-amoled-showdown-which-screen-technology-is-better/|from here]. Samsung is the AMOLED, while Sony is the SLCD. Hope this helps, good luck.