Sony is continuing (http://www.gsmarena.com/sony_teases_honami_power_button_on_twitter_gets_us_excited-news-6622.php) its #bestOfSony (http://www.gsmarena.com/upcoming_honami_flagship_gets_teased_again_by_sony-news-6632.php) teasers of the Xperia Z1 / Honami with a look at the camera. A G logo next to it indicates the upcoming cameraphone will be using Sony's G lens, which is Sony's line of lenses for DSLRs and digicams.
(http://cdn.gsmarena.com/vv/newsimg/13/08/honami-camera-teaser/gsmarena_004.jpg)
There's an LED flash next to the camera