Reply to Sl1 and ASIO4ALL

i read a little snippet and have heard rumors that with the asio4all drivers and the SL1 you can use the sound-card for Traktor Scratch Pro and Serato Scratch Live. can anyone here bring some more information.

i've even seen this video "demonstrating" it. i just want to make sure this is true before i invest in this.

http://www.youtube.com/watch?v=gQ1S5mQhuiA