Guys over at What Siri is Saying are running a competition for a £100 Amazon voucher and all you have to do is ask Siri a question. You don’t have to own an iPhone 4s to take part as the people behind the website will do it for you if you ask via their Twitter or Facebook and post the result on the blog. If it’s a good one we’ll even put it on the site so you can get your friends to start voting. If...