Thanks for your kind words and thoughts.
I've had the news reports on the BBC since I heard about the explosions this morning: http://news.bbc.co.uk/1/hi/uk/4661059.stm
It's now 4 p.m. here, and there is currently a news conference being broadcast.
On a technical note, one of the people answering questions is from London Underground (the subway system) and he has just given an answer to a question about early rumors that a massive power surge was responsible for one of the explosions.
It has emerged that the bomb at Edgware Road station blew a tunnel wall and hit three separate trains. The resulting derailments caused multiple breakers for traction current to trip out, and it was this which led to those rumors of a power surge.
Our thoughts and prayers to those killed and injuried, and to their families.