I have 7$ to spend on my 3DS, and its a choice between these two...
ZP3D: I dont have a pinball game yet, and this is supposedly getting updates as well... and I love pinball!
Ketzal: It seems to be like ThruSpace 2, and I loved the demo for that on Wii, and would love a more full experience.
(Also, if anyone wants to suggest Colors! 3D to me, please don't... I'm a terrible artist and its hard for me to draw anything with a stylus.)
This is a hard choice... can anyone vouch for either? Thanks