it's all in here
There was a lot of planes flying past that day
http://7thspace.com/headlines/284502/the_queens_birthday_flypast___14_june_2008.html
2 publicly visible posts • joined 30 Mar 2009
It's a formation of eurofighters on their way to a flypast at buckingham palace for last year's trooping of the colour. This can all be found online - there were 9 of them, and if you trace their path over Fairlop towards the palace, you can see it goes right over Bethnal Green.
The large delta-wing shape of the planes, plus the blurriness of the image makes it look a bit like orbs. But look again.