Our Apple TV has just alerted us to the fact that we'll be able to watch a livestream of Cupertino's big launch show at 10am Pacific Time (1pm ET, 6pm UK) today. Others are seeing it on their black boxes too, according to Macrumors, but it's still not clear whether the event will be streamed to everyone else via the company's website -- it almost certainly will be, but stay tuned for details. Oh, and bookmark this page to get a liveblog side order.
Update: Apple will indeed stream to web users too, on any browser they like as long as it's Safari. Here's the link for later.