There is a new version of Challenges Your Memory launched on Facebook(*apps.facebook.com/kingston/) and the prizes are HyperX, SDHC memory cards and DT Locker USB drive!
On the other hand, starting from March 1st, the original version's prize becomes huge amout of K-Bi which could be used to redeem prize on Kingston Blog. In the past, the redemption prize list includes Kingston's products like HyperX, SSDNow, USB drives and memory cards and even PSP and Canon digital camera! If you want to get as many free gifts as you can, you should try both~