I've mentioned the Amazon Echo before. It is rather nice. Up until now the only way to get one was to import it yourself, which is what we do. Works a treat, as long as you are OK with only knowing the weather in Seattle.
Anyhoo, after my positive review Amazon have decided to release it in the UK. Which means all kinds of useful UK services including trains, news and weather. I'm not completely sure how much of the american version will work once there is a "proper" version of the device in the UK, but even with it's slightly truncated feature set we've found it pretty useful.