Finally after months of teasing and taunting, they have revealed their prices. Booking is open for members from 21 Mar - 22 Mar. After you have signed up, click here to access http://www.flyscoot.com/member/
Here is the full booking process.
Final cheapest price:
Return Airfare = S$211.17
15kg Bag = S$28.00 x 2 ways
Payment by Visa/Mastercard = S$8 x 2
Total = $283.17!