What I've seen of the Sammy glass indicates that it is quite good.
But...
If you're looking at a GH4 grade body, that is a fairly high end body, which means you'll be wanting fairly high end glass to get the most out of that body.
In that respect, there is no comparison. µ43 not only has far more high end glass, it is actively developing more high end glass than any mirrorless company. Even Sony can't keep up, let alone a company with a much smaller presence like Samsung.
Body specs aside, a camera is only as good as the lens mounted, and it is only as flexible as the lens line that can work on it.
It would be a big mistake to under estimate Samsung.
Right, but it's no bigger mistake than to underestimate any big player in any area. And many big players just don't deliver.
OP question is asked too early. Wait for reviews and then read them. There are no full NX1 reviews now, so the thread is mostly about about speculations.
They came from nowhere to dominate the television and the cell phone market.
They were actually trying for many years before that, but they were mostly unknown.
Cameras aren't going to be any different.
Wrong. Cameras are certainly different from smartphones. So are Windows tablets that Samsung recently decided to stop manufacturing.
It would be too short-sighted to equate cameras and smartphones. Mobile market (smartphones and their components, displays, memory, etc) is what giving Samsung most profit. Computers, cameras, washing machines and refrigerators are all secondary.
They launched NX systems several years ago and so far it failed to gain any popularity. It looks like Samsung doesn't care. Even if NX1 becomes a gem (again, no reviews at this time), it's unlikely that they will shift focus to cameras.
Samsung's mobile department is now in troubles - even though they are a largest cellphone maker, they are losing market share. Mobile is likely where they will focus on in future. For Samsung it will be a tough fight with Apple and Chinese manufacturers for mobile dominance.
I doubt they have resources to focus on cameras too. Otherwise, they would have put way more marketing efforts in NX system earlier, when they didn't have troubles, but they haven't done that.
OP should have waited for reviews at least. Then, if reviews are positive (as I expect), one needs to consider lenses availability. Samsung lenses are severely lacking at this time comparing to micro 4/3, with no clear roadmap.
Then, only if two points above (reviews and lenses) are cleared, one may need to think about future - will they pay enough attention to camera considering that they haven't before, and now, when they are losing mobile dominance?
Lucky for Olympus and Panasonic they didn't get into M43.
Don't overestimate Samsung too. They haven't changed APS-C market after several years; they wouldn't affect m4/3 market either, even if they were smart enough to join m4/3.
