Can some one explain the difference between a “wiggler” JTAG programmer like [PGM-00275, the [PGM-07834 and finally the [PGM-08278 ? It appears that all three work with Open OCD, all program the ARM processors and all offer debugging.](JTAG USB OCD Tiny - Programmer/Debugger for ARM processors - PGM-08278 - SparkFun Electronics)](JTAG USB OCD Programmer/Debugger for ARM processors - PGM-07834 - SparkFun Electronics)](http://www.sparkfun.com/commerce/product_info.php?products_id=275)
Wiggler clones use the (now rather rare) printer port. The others use a USB connection.