Hi,
I flew Merpati (the Pigeon) from Manado to Luwuk (Central Sulawesi) in March 07 in one of those turbo prop machines. Staff from Lembeh Resort had to call/go back and forth several times to the Merpati office in Manado to finally get the me the right ticket (timetables can change any moment)
Overweight luggage came at about 1-2 USD/kg. Nobody seemed to mind my (overweight) Lowepro backpack + (stuffed) laptop bag... 
On the way to Luwuk pilots closed the cockpit curtain (another passenger saw them smoking)
On the way back to Manado we had to wait hours for our plane to arrive, but eventually it arrived with some local pop star annex TV crew and a bunch of screaming girls 
Right before take off pilot arranged some newspapers on the windows to keep the sun from shining to brightly into his eyes. 
During take off and first minutes an Indonesian gentleman happily continued to use his mobile phone...
According to my travel agent I'm flying Merpati again: Manado - Sorong. Although on the way back from Sorong to Manado and onwards to Singapore I've been given the advice to stay overnight in Manado...just in case the flight Sorong - Manado has some delays 

All part of the adventure, I guess 
Best regards,
Bart