Hello there! 
A lucky japanese boy had the amazing opportunity to play a little in the new Nintendo 3DS!
He shared this:
"Today I stopped by an electronics store in Shinjuku hoping that they  would have the 3DS on display and possibly have a demo model to play  with.  Luck was on my side so I did get some time with the unit and can  offer some initial thoughts based on my play time.
First off- the 3D works.  I had mentioned previously that I was a bit  unsure that it was anything more than a gimmick.  My suspicions seemed  to be wrong though, as it works quite well.  I got time to play around  with Nintendogs + Cats and the 3D effect was definitely noticeable and  unlike the regular graphics on the current DS(i).  You have to be  standing still and keep your eyes focused on the screen to make it work.   Turning off the 3D produces a game experience that is the same as the  current DS (besides all the new upgrades).
The graphics seem to be better, but it was hard to tell by how much  without my DSi open next to me.  Since the handheld is just about to  launch I also have to take into account the fact that this is new  hardware for developers to toy with (even first party ones).  I expect  that we’ll get a ‘wow’-factor soon enough.  The graphics *were* an  improvement, don’t get me wrong.
One of the hardware aspects that excites me the most is the analog  stick.  Although I’m sure the mechanisms work similar to the PSP’s  analog “nub”, it works well and control feels smooth.  The hardware  upgrade is worth purchasing just for this little guy.  The material is  also soft, similar material as the Wii’s nunchuck has on its analog  stick.  The top screen’s size boost also benefits the handheld and  offers more real estate for developers to take advantage off.  The  touchscreen seemed the same as the 3DSs predecessors, save for the  addition of the three buttons bordering the bottom."
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