A number of sources are reporting (here, here & here) that a group lead by Prof. Massood Tahib-Azar at Case Western Reserve University has developed faster and cheaper methods for growing (and welding?) carbon nanotubes potentially for the purpose of wiring shrinking Microelectronic circuits.
The only problem I see is that although it is widely reported, there appear to be few details on the method(s) other than the fact that they are "growing" the nanotubes from "seeds". In that respect it sounds similar to the methods used to grow silicon nanobridges which were previously discussed on Nanodot.
Nanobreakthrough or nanohype?