Just tried it, looks good initially. Will have to look some more when I have time.
It is a shame Eurocontrol et al in Europe don't open up their data so much as the FAA do. If you want to use flight tracking for aircraft in the USA it is so much easier. Security wise I would have thought it would be the US who don't want to release data but seems the other way round.
For those of us in the Airlines it would be a very useful tool.