A model displays new tablets, the world's lightest tablet with a 7-inch display weighing 249 grams "MEDIAS TAB UL N08" (L) and the world's largest organic EL display at 7.7 inches tablet "GALAXY Tab 7.7 Plus SC-01E" (R) by Japanese mobile phone carrier NTT DoCoMo during a press preview in Tokyo on August 28, 2012. NTT DoCoMo unveiled three new smartphones and two new tablets, all compatible with the company's Xi LTE mobile service, for launch in or after September. AFP PHOTO / KAZUHIRO NOGI
A model displays new tablets, the world's lightest tablet with a 7-inch display weighing 249 grams "MEDIAS TAB UL N08" (L) and the world's largest organic EL display at 7.7 inches tablet "GALAXY Tab 7.7 Plus SC-01E" (R) by Japanese mobile phone carrier NTT DoCoMo during a press preview in Tokyo on August 28, 2012. NTT DoCoMo unveiled three new smartphones and two new tablets, all compatible with the company's Xi LTE mobile service, for launch in or after September. AFP PHOTO / KAZUHIRO NOGI
A model displays a new high-spec smartphone "Optimus G L-01E" (L) and the world's largest organic EL display at 7.7 inches tablet "GALAXY Tab 7.7 Plus SC-01E" (R) by Japanese mobile phone carrier NTT DoCoMo during a press preview in Tokyo on August 28, 2012. NTT DoCoMo unveiled three new smartphones and two new tablets, all compatible with the company's Xi LTE mobile service, for launch in or after September. AFP PHOTO / KAZUHIRO NOGI