To me, the main shortcomings, at the moment, as a UK customer, are the male voice (seriously... I want the nicer american female voice... it subconsciously annoys me to think of "Siri" as a British male) and, perhaps more importantly, the fact that Siri won't connect to Yell/GMaps/etc in the UK yet, so I can't emerge out of the tube and ask "How do I get to 123 Some Street?" and be presented with a map. I'm not quite sure why that doesn't work in the UK - surely, the interfaces to Google Maps and even Yell don't differ by country.<p>Despite those, it is already very useful. I'm using the timer all the time ("Set a timer for 3 minutes", "Wake me up in 20 minutes", "Wake me up at 7am tomorrow"), and the weather ("What's the weather like tomorrow?"), and using it to set meetings ("Add event 'drinks with Enrico' at 6pm on Friday").<p>The real killer, imho, will be the integration with services. The voice recognition seems good enough, the "parsing what you mean" could be improved but is good enough. What makes or breaks Siri is the integration with services. The timer/reminders/calendar integration is extremely smooth and so it is great and a huge help. Bits that aren't integrated (e.g. Twitter) or less well integrated (e.g. sending SMS's), less so.<p>All in all, a great start, and useful from day one, though, like all new Apple products, there's plenty of room for improvement. I'm waiting to see where they take it - unlike some other companies, Apple do have a reputation for relentlessly pushing forward after releasing an initial, "it doesn't do much but it does it well" device.