A lot of people here (from what i can tell) like the Korg DS-10 synth for the Nintendo DS. So do i!
No idea what genre to call this but it's a really vibey electronic track and i enjoy it very much.
SC (https://soundcloud.com/woutervleeuwen/in-the-woods)
YT (http://youtu.be/fbDl90kmyMY)
I also made two live performed songs for some friends recently using the DS-10 which can be listened to here:
Live One (https://soundcloud.com/woutervleeuwen/live-one)
Live Two (https://soundcloud.com/woutervleeuwen/live-two)