1. **The Nikon 1 V1 is not a DSLR.** It is does not have a reflex mirror.
2. The V1 has a **smaller sensor with 2.7X crop** compared to full-frame.
3. The previous two points make it **much smaller than a DSLR**, particularly when including lenses.
4. It does not have an optical viewfinder, instead **it uses an EVF with 1.4 megapixels**. This gives it a larger and brighter view than most cropped-sensor DSLRs (D3100, D5100, etc) but smaller than a full-frame (D3X, D3S). Like professional models, **it gives 100% coverage**.
5. <strike>**It uses an electronic shutter** instead of a mechanical one. Since it has no mirror to move either, it can shoot continuously without any moving parts. As you noted it can do so at up to 60 FPS but also does 30 FPS and 10 FPS with continuous AF.</strike> The v1 has both a mechanical & electronic shutter ([source][1]) which can be switched in the menu of the camera. The electronic shutter can shoot continuously while the mechanical can't - however there are quality trade offs between them.
6. The electronic shutter allows a **maximum shutter-speed of 1/16000s**, twice as fast as the best DSLRs on the market.
7. **It uses a different lens mount** called [Nikon 1 mount with 4 lenses][2] *presently available*. To use Nikkor AF-S lenses an adapter is planned but not yet available.
8. It can use fast phase-detect autofocus while recording video. No DSLR can do that which is one reason AF for video is quite disturbing (contrast-detect forces the lens to move back and forth to determine focus).


  [1]: http://www.techradar.com/reviews/cameras-and-camcorders/cameras/digital-slrs-hybrids/nikon-1-v1-1038234/review
  [2]: http://www.neocamera.com/list_lenses.php?mount=n1