is it as cool as I hoped?
is there a reason you'd buy the Mega still?
I don't have one but I can tell you that I'll never buy one either. I recently got an STM32F4 Discovery for 12 dollars and it seems to be better in almost all ways. It's far cheaper, it has 192k of RAM, same amount of ROM, it runs at double the clock speed of the Due and the board has various things on it (a DAC, a mic, an accelerometor, and a usb host port). Every single pin on microcontroll er is broken out into male header pins. The only thing I can complain about is that the pins are broken out in a random order (they're not grouped into ports).
@KeithRBHow are your experiences with the development SW of the STM32F4 Discovery?
I personally love the STM32F4 and I cant see me ever going back to an Arduino
"pro" ($2.6K, but uncrippled) version of Atollic?