Stad Amsterdam. This is just one of the new arrivals at Canary Wharf.
There have often been one or two expensive-looking private yachts moored up at South Dock, but those have been moved away into what looks like a less convenient and attractive spot.
That, it seems, is owned by the co-founder of Microsoft, and is called (not inappropriately, though I doubt if he's aware of the irony) Octopus. So now you know where your money goes: it's so big (with not just one launch, but a swish cabin cruiser - just visible at the bottom left of the photo below - and a fair-sized tender, presumably for the nautical Microserfs) and takes up so much space that one wonders it isn't called Octopus 8.0. No word yet on how often it crashes.