To be honest, we never heard of Inhon, an obscure Taiwanese laptop manufacturer which unveiled a new laptop called the Blade 13 Carbon.
It is apparently the thinnest and the lightest Ultrabook on the market which means that it is powered by an Intel Core processor and runs on Windows. There are other laptops that are either thinner and/or lighter than the Blade 13 Carbon but none of them would qualify as an Ultrabook.
This 13in model costs only $1,350 and its starting configuration comes with an Intel Core-i5 (presumably the ubiquitous i5-3317U), with 4GB (non-upgradable) RAM, 128GB onboard storage (via a SSD) plus a 13.3in 1,920 x 1,080 pixel display. It weighs a mere 870g and is only 10.7mm thick.
Other models either come with more powerful CPUs (like a Core i7 model) or a bigger hard disk drive (256GB SSD). A model with a 1,600 x 900 display and a fiberglass (rather than a carbon) chassis will cost less (around $1,000) but will weigh more (at 1.2Kg) and will be thicker (12.6mm).
The laptops are expected to go on sale in Taiwan in June, which would coincide with the release of Intel’s new Haswell CPU architecture and Computex.