I'm going to get a flash cart for one of my friends for Christmas. He's not too tech-savvy, so I just want to give him a flash cart with an easy to learn interface in the low-to-mid $20 range. So far I've come across the iTouch DS and the DSTT. 1) Which cart's GUI is easier to grasp for a novice? 2) Which cart's firmware is updated more regularly? 3) Are there any other choices that may be more suitable?