A follow up to the two-year-old hint 10.6: See new functions on various menu bar icons. If you Option-Click the Bluetooth Menulet, you get an option to 'Create Diagnostics Report on Desktop.'
I always assumed this was just the Bluetooth Diagnostics report, but when I clicked it, it created a ZIP on the Desktop: BluetoothReporter_DATE_TIME.zip.
This file is far more useful than I suspected. It contains:
- kernel.log
- PacketLoggerBluetoothTraceFile.pklg
- system.log
- system.log.0.bz2
- SystemProfilerReport.spx
- WebProcess_DATE_TIME_COMPUTERNAME.crash
Perfect for sending to a Service Provider or engineer for diagnosis.
[crarko adds: This is really handy. I've used it myself to help in trying to debug an iOS app I was working on, that used Bluetooth within the Simulator.]

