Stratfor has a update on how British authorities have formally charged them in court.  Here  http://www.stratfor.com/weekly/heathrow_plot_trial_retrospection_and_implications

The names of the accused plotters, all men in their 20s, are Abdullah Ahmed Ali, Assad Sarwar, Tanvir Hussain, Mohammed Gulzar, Ibrahim Savant, Arafat Khan, Waheed Zaman and Umar Islam. They lived around London, in Walthamstow, Leyton, Plaistow and Barking. Most are Pakistanis. Some are PhD's etc. 

Stratfor surmises that terrorists are targeting planes and they remain easy targets.