Its kind of mindblowing, I will however laugh my ass off if about a month after its released thousands/millions of units are returned... its virtua boy all over again.
Very unlikely. The 3DS doesn't seem to suffer from the problems Virtual Boy did. Namely...
1) Virtual Boy had a poor quality setup of games (Wario Land was really the only standout of the bunch), the 3DS looks like it has a pretty good beginning line-up.
2) The Virtual Boy was monochrone (and an ugly monochrome red at that), the 3DS is full color.
3) The Virtual Boy wasn't portable like it was advertised to be, the 3DS looks pretty darn portable to me.
4) The Virtual Boy was far more "intrusive". The 3DS you just look at like a normal DS, the Virtual Boy you had to get your head into a specific position.
5) The Virtual Boy was experimental, the 3DS is based on the already-existing DS setup, which has proven to be very successful. Furthermore, the Virtual Boy had no backwards compatibility.
6) You can easily reduce or turn off the 3D effect on the 3DS if you want, where as the Virtual Boy was full 3D all the time.
I really doubt the 3DS will be the next Virtual Boy. At worst it'll be the next Scribblenauts, something that got giant publicity but turned out to be a just a decent game rather than the wonder it was made out to be.