Jonathan F/2: I still don't see the appeal of this type of lens. If weight is such a concern, get a 180mm 2.8 AF-D.
Yes, the 180/2.8 is lighter, smaller, and faster. Others might consider the faster, quieter, and more accurate AF, or the zoom capability for outdoor sports, not to mention the VR. On certain bodies, you can't even auto focus with the 180mm.
I'm personally skeptical about the system, but I also can't believe how everyone jumps to criticism about what the system is NOT, rather than what it is.
Speed: even if the diagram is an exaggeration, wouldn't it be nice to have the AF speed of a D3-series for 1/5 the price and 1/3 the size?
Features: There is clearly much missing from this system for enthusiasts, but I think the combination of 1080p/30fps, full-time AF, and power zoom could be enticing for the target market - the remaining millions of people out there who do NOT keep up with photography news.
Colors: if this is the biggest gripe, the world will go on...
Nikon has had its share of failed product lines (IX lenses). Yet, the D1 was far from perfect - and certainly not inexpensive - when it was introduced. So were DX lenses. I am interested to see how this system will evolve.