* Engine RPM
* Calculated Load Value
* Coolant Temperature
* Fuel System Status
* Vehicle Speed
* Short Term Fuel Trim
* Long Term Fuel Trim
* Intake Manifold Pressure
* Timing Advance
* Intake Air Temperature
* Air Flow Rate
* Absolute Throttle Position
* Oxygen sensor voltages/associated short term fuel trims
* Fuel System status
* Fuel Pressure
* Many others...

>>Upcoming Features:
* Data graphing and logging
* Freeze frame data
* Continuous and Non-Continuous Oxygen Sensor test results

>>Free software:
* GM Mode 22 Scan Tool by Terry
* OBD Gauge for PalmOS and Pocket PC by Dana Peters
* OBD Logger by Jonathan Senkerik
* OBD-II ScanMaster by Wladimir Gurskij (ScanMaster 3.52 - local copy)
* OBD2 Scantool by Ivan Andrewjeski
* OBDII for ELM322 by David Huffman
* pyOBD by Donour Sizemore for MacOSX and Linux
* RDDTC by Pete Calinski
* Real Scan by Brent Harris
* ScanTest for Pocket PC by Ivan Ganev aka a-ser
* OBD by WDT