1. Why would anyone able to afford to travel by helicopter to a world financial centre be in need of only a 'cheap' hotel ?
2. Do you not think London City, whose airspace is pretty maxed-out at peak times, would have a view on things ?
3. The police and medical already have quite sufficient facilities of their own on the river. They have been here for a couple of hundred years.
4. It is not just heliport mis-spelt. I count four words in a brief note. You will not be taken seriously.
5. If you were taken seriously, those of use who live in Docklands will see such a proposal off. As most waterfront areas in Docklands are now high-density residential this should be no surprise.