How I found it: http://www.geekosystem.com/piece-glass-store-data-forever/
Original Article: http://www.scenereport.pk/tag/hitachi-silver-glass/
Apparently Hitachi has developed a glass like storage device that can contain about 40MB of data per sq. inch. Although that isn't a lot they only just developed it. Oh yeah, it can withstand pretty much anything except a ball peen hammer.
