After seeing it in leaked images (http://www.gsmarena.com/blackberry_z30_joins_the_z10_and_q5_in_new_leaked_photos-news-6538.php) next to the BlackBerry Z10 and all on its own (http://www.gsmarena.com/image_of_blackberry_a10_with_5inch_display_leaks-news-6366.php), and then watching it start in a brief video (http://www.gsmarena.com/5inch_blackberry_a10_leaks_on_video-news-6374.php) (recently pulled), we know get to see the BlackBerry Z30 (previously A10 or Aristo) in a longer clip.
The video shows the device from top to bottom and is more of a detailed hands-on than a quick peek. The device is going to sport a 5" 720p display and a dual-core Krait chipset.
Here's the video itself. The device has an AT&T logo on it, which gives us the first availability info, although we are yet to learn any dates.
Via (http://www.phonearena.com/news/New-video-of-BlackBerry-Aristo-Z30A10-discovered_id46276)
GSMArena.com