I meant arduino as the arduino "programming language" and IDE, as oposed to say atmel studio and plain old C. I like the pre-programmed bootloader and the boards for quick prototyping sure, but not the software side of arduino.For lots of reasons - the bootloader and USB power means minimal fussing to set up. Easy infield updates. Lots of good libraries. Tons of sample code. Wide range of performance available. Fast prototyping. Very low cost boards available. Other than that, not much...