I just saw this too. A couple other previews for LG's gram include
hothardware and
techradar.
Things which I find impressive: new nano carbon magnesium alloy which allowed the LG Gram to pass seven stringent US military MIL-STD 810G tests for resistance to impact, pressure, and temperature (per hothardware), IPS screen with in-cell touch functionality, number pad on 15.6" keyboard, 14" screen in 13" form factor due to narrow bezels, option for two SSDs. (Edit: can't forget the 22.5hr battery life and TB3. Apple is falling behind.)