Basically it's the same with 4Gamer (reporters from the two sites are interviewed together).
With some detail:
1. The Windows 8 touch UI was started on 2011 autumn as a part of co-promotion project with PC makers and Microsoft.
2. The ultrabook used for touch UI demo was slower than the 'LOW' PC used for live demo, but it's still able to run ARR.
3. There will be no official support (such as graphic option "very low") for machine under Core2Duo + 8800GT.
4. About the delay of Close Beta phase 1, Yoshi said a player told him it's very hard to wait for 6 weeks without anything to play with, also concern about the community will fall apart with such a long blank. Yoshi responds "I knew that very well", but emphasized "It's more important to keep the quality of ARR attractive and competitive with other MMO, if we can success on this, the community will get together again".