After a quick search of the net, all I could find was this:
Date: September 29, 2006
Time: 16:50
Location: Near Sao Felix do Araguaia , Brazil
Operator: Gol Airlines
Flight: 1907
AC Type: Boeing B-737-8EH
Reg: PR-GTD
cn: 34653/2039
Aboard: 155
Fatalities: 155
Ground: 0
Route: Manaus - Brasilia
Details: The flight disappeared from radar at 16:50 after leaving Manaus at 15:35, scheduled to arrive at Brasilia at 18:12. While en route the jetliner collided with an Embraer ERJ-135 business jet. The Embraer was able to land safely at Serra de Cachimbo with a damaged wing and tail.
From: http://www.planecrashinfo.com/
Anyone got any further details? A mid air crash between a 737 and an Embaer is quite unbelievable. Don't they have ATC in Brazil?