is there anyone who heard about samsung nx? what is it like?

i need my second camera, and i want it to be easy to use and portable... meanwhile today i saw samsung NX mirrorless camera in cnet, which is alike my bro's SONY NEX3.
Three new NX system cameras; NX1000, NX20 and NX210
http://www.samsungimaging.net/...new-nx-system-cameras-nx1000-nx20-...
i wonder if there's anyone who uses the one and what it's like. i don't think it's affordable but the NX20 looks quite good. plz gimme an advice.