I went on the London Eye today. Mum didn't want to come - she was too scared - so I just went on my own. I don't know why she was scared, it was actually quite boring as far as "rides" go. You're in this giant bubble, essentially, with up to 25 other people, and it just turns around really slowly (28 minutes per revolution, or thereabouts). And it doesn't stop to let you on or off, it turns so slowly that the people get off, these guys with detectors on sticks come in and look for explosives under the seat (and a girl goes around with a broom to pick up the rubbish), then everybody piles in - all while the capsule is still going around.
If the weather was a bit clearer than the day I went, you'd probably end up with a much better view, but I could still see quite a far way. In fact, the view up the river was still pretty good.
I was on a bus tour around London as well, so I saw all the major places, Trafalgar Square, the Marble Arch, Buckingham Palace (the queen was in residece, but I never saw her...), St. Paul's Cathegral, Westminster Abbey, etc, etc. It was good, but it really depends on your speaker. I got off a couple of times, with a different speaker each time. Only one of them was really decent - when you find a good one, you tend to stay on the bus much longer. When you have a crappy one, you tend to get off at more stops. So I guess it's not bad either way :)
I met my mate Jeff for drinks tonight as well, so that was good. He moved to London about 5 months ago, so it was good to catch up. He seems to really like it here. After all, this is a great launching point for traveling around Europe - if that's what floats you boat.