> ... it doesn't give definite audible confirmation of the command ... I don't have this either, but can tell you that Google's voice recognition does have a c

> ... it doesn't give definite audible confirmation of the command ... I don't have this either, but can tell you that Google's voice recognition does have a confidence rating on a per word basis. (See Google voice messages. Also use the recognition API and it provides alternatives.) In their navigation product they directly do whatever was said if there is a high confidence. If not it shows the recognized speech with a "pie" based countdown to using the displayed recognition. You can press OK to go ahead (or wait), or cancel/try again. They could obviously do something similar with this. They also use context for their voice recognition. I grew up in a town named Piggs Peak (note two 'g's). If you say "piggs peak" you will get that spelling, but for example saying "peak pigs" gets you the spelling with only one g. This explains why wooster/worcestor doesn't confuse them. I don't have a siri capable device so I don't know what they do.