I can't understand why they making swap from NEP5 to ERC tokens? As far as I know they were going to make own blockchain.. so why this swap? And when will be launched own blockchain? Where is gone roadmap from the site? I can't find...
And why price pumping today? Only because of this swap?

I think this is a technology transfer. It's possible that switching from NEP5 to ERC is a foolish thing but if you look at the current market, the ERC is still a good choice for everyone. Personally, I still like the NKN to have its own unique technology and own Blockchain system, but this trend is decreasing because the value of all coins is decreasing so much recently.