I agree. The Mumbai bombings, awful as they were were given far more attention than say the Hindu massacre of 500 Christian Civilians in Orissa.
There's always going to be a group that people pick out and focus on, usually the last major powerful empire (as we learn in History =] - like the Ottomans, Mughals etc. were muslims). So it's muslims now, it will be someone else next.
The media also has certain people controlling and filtering what goes through, which gives a tainted image of the truth. And the minority muslim extremists or whatever give an excuse to extend this image further