We have seen Lumia 920’s Supersensitive touch screen being used with gloves on, cloth and metal objects as well. Now, watch it being used/abused by Forks and gloves again. Point to remember is that, it will work similarly for Lumia 820’s touch screen as well. Also I think, Nokia may be bringing capacitive “Pens” to handle the screen later.
The other video is 12 minute long hands-on demo of Lumia 920 by some really lucky fellows at “CyberTV”. They have demoed NFC, Wireless charging, Camera’s Low-light and OIS demo, City Lens and much more.