Can’t wait for developers to start pushing it. The GPU on the 3DS is actually a little bit better than that of the PSP and if the CPU is what it’s rumored to be it would be much greater than that of the Wii. Hell the chip it’s based on is even multicore capable and can clock up to 2GHz 
Here’s a tech demo of the GPU the 3DS has:
http://www.eurogamer.net/videos/nintendo-3ds-gpu-tech-demo?size=hd