Webwork - 2:10 am on Jan 19, 2012 (gmt 0)
Save your money, effort and time. Various forms of such software/service have been around for a decade+. Endless running of such software/services has done a thorough job of gathering up ALL the best fruit, the low hanging fruit, the tasty fruit, etc. ("Fruit"=domains)
Instead, try your hand at "predictive domaining", which requires a bit of vertical market expertise or curiosity AND a bit for foresight. In other words, don't use a tool that looks for "what's out there". Instead use a tool (your brain) to look into the future.
What will the generic name of the next new technology, trend, tool, service, etc. be? What will the people who provide, use, deliver, etc. the service be called?
Sorry if this doesn't answer your question but, as answers go, this one is likely more valuable than the one you paid for. :P