Update: Queen Elizabeth Has Left The Hospital

Queen Elizabeth has been released from the hospital, and appears to be doing well!

The Queen, smiling and looking well, has left King Edward VII Hospital in London after almost 24 hours of treatment for gastroenteritis.
— Richard Palmer (@RoyalReporter) March 4, 2013

The below photos are from earlier today and show Her Majesty leaving the hospital and looking to be in good spirits.