Recently there has been an update that HTC is upgrading the phone chassis from aluminum to liquidmetal jacket. Liquidmetal is an alloy that defies the aging process and has strength along with resistance to corrosion. This may sound interesting and obviously the word "durability" adds to it with no hesitation as this alloy will be virtually unbreakable and highly resistant to corrosion and scratches.
Reports from Digitimes said that HTC is planning to launch one or several smartphones made of Liquidmetal by the end of 2013. It is also reported that Taiwan based manufacturer HTC might be considering to work on building a smartphone with a casing made of Liquidmetal in the second half of 2013.
It is expected that Taiwanese firm Jabon International would supply the Liquidmetal chassis to the smartphone manufacturer. However, HTC's current chassis partner, Catcher Technologies, reportedly said that it had not heard anything about HTC using a Liquidmetal chassis.
Reportedly, on the other hand the Apple iPhone has been working on a Liquidmetal device ever since early 2012. Rumors are that they also have the exclusive rights over the technology.
To elaborate a bit on the alloy, The phone with the casing of the liquidmetal will be smooth enough as liquid. In fact Liquidmetal is thought to be twice as strong as titanium, so if the rumors turns legit HTC's upcoming smartphones will be virtually one of the most durable devices. As I said before this metal has a very high resistance to corrosion and scratches, and dropping as well.
One thing that keeps us wondering is the price range of the device.