Summary of story at The Sydney Morning Herald, Australia
Not much information at the moment - around 40 minutes ago two bombs exploded at the Marriot and Ritz-Carlton hotels in Jakarta. The Ritz-Carlton has lost it's facade so it suggests that it was a bomb outside the building, no word on damage at the Marriot.
Initial reports are at least 4 deaths at the Marriot, and 3 injuries at the Ritz Carlton. Police are saying there have been 4 foreign deaths.
It's currently assumed that it's another attack by Jemaah Islamiyah, who also attacked the buildings in 2003, killing 12.
Edit 1 : Photos of damage
Edit 2 : 6 Dead, 10 injured
Edit 3 : 10 Dead, 50 Injured. One of the Foreign Nationals is from New Zealand, no other information
Edit 4 : A third bomb has gone off in shopping centre north of Jakarta, no other information at this time.