There's no point in comparing the NX10 against a DP1 or EP1.
Because the NX10 is equivalent to the Panny G1/GH1, that's why. ... The NX10 is for those who want the SLR form factor experience. ... SLR cameras far outsell the DP1 and EP1 ... I would say that there are a
lot of people who are buying into the SLR form factor.
Your argument relies on claiming that a lot of people considering the SLR-like form factor with the hump on top to be an advantage in itself, rather than seeing it as a disadvantage by making the camera bulkier. That is nonsense; people accept the lump on the top of an SLR because of the functionality it comes with: faster PD AF, the far greater and more varied lens options, a choice of brands, and
You may not realize this, but that "hump on top" is actually a viewfinder through which the user can frame his shot, much like with a conventional SLR camera. And having such a viewfinder has its benefits compared to
not having a viewfinder.
Once the lump does not come with those SLR advantages, buyer preferences are reversed. To see this, compare m4/3 models with and without the lump: the lumpless models (EP1, GF1 and EP2) are selling better than the lumpy models.
I would hardly base your entire argument based on the sales performance of the G1 camera compared to the EP1/GF1/EP2!!! LOL.
To mimic your game of comparing to DSLR sales volume, I will point out that overall, lumpless cameras vastly outsell DSLRs and all other lumpy cameras: 90% of camera sales are lumpless digicams. But that would be as silly as your comparison: attributing to shape customer preferences that are instead mostly based on factors like function, size and cost.
Your so-called "lumpless cameras" are actually P&S cameras mostly bought and used by casual snap shooters. Such shooters have little need or desire for a viewfinder. However, the rest of the market
does want cameras with viewfinders. That's where the NX10, GF1 and DSLR cameras come in. And in the future, many of today's mirrored DSLR cameras will eventually go mirrorless, too. And yes, they'll most likely maintain the hump, too. Why? Because that hump houses a viewfinder! Many shooters who don't have much experience with viewfinders probably don't understand the value and benefit of actually putting your camera up to your eye, and that's probably why you don't see the appeal of it, and therefore just dismiss it as just a "lump" on the camera. For the rest of us, that "lump" and the viewfinder that resides under it is an integral part of the camera, and we prefer to have it!