Extreme zoom-range lenses are inevitable in all mounts - even in the rather low profile Samsung NX mount. Following the philosophy of of its kind, the Samsung NX 18-200mm f/3.5-6.3 ED OID iFn is promising to deliver a huge focal length range in a compact, light-weight package. Such a multi-purpose lens belongs to the so-called "Omnia" series in Samsung terminology.
Just like the similar Sony E 18-200mm f/3.5-6.3 OSS (Sony NEX), it shows a weakness of the concept when applied to APS-C mirrorless cameras though. The cameras may be small, even tiny, but lenses with a medium to long tele range are just as "big" as on an APS-C DSLR - a Nikkor AF-S 18-200mm f/3.5-5.6 VR II (for Nikon DX DSLRs) has about the same size and weight, for example, so such lenses aren't really an obvious choice here.
The Samsung NX 18-200mm f/3.5-6.3 ED OID iFn offers a field of view equivalent to about "28-308mm" on full format cameras. That's impressive for sure although it's getting even more extreme in other mounts lately (e.g. Nikon 18-300mm, Tamron 18-270mm). Price-wise the Samsung lens isn't overly cheap but about in line with offerings from other manufacturers.