Lab monkey - Here, have a digital banana…
Wow, never saw the Eval or mini programming kit before. I’m going to have to order one of them. I’ve been waiting for the 29 series for a while. Now all they need is a 16 bit core for a more computational family 
I have a decent sense for its reconfigurability. I sometimes wish it had a CAN interface, but I can fix that with an SPI chip. I’m still planning on using them for my 6 DOF inertial engine. I wouldn’t ever cut off the digital or analog blocks (more of them, and maybe a higher performance analog grade of chips in the future would be nice), but what I fear stalls a lot of designers is the low MIPS per MHz. I still need to work on my code to see if if the M8 core can read position updates and filtering well enough to be used as an integrated IMU or if a master processor will be needed to do the more math intensive calculations.
And Todd, you’re right. I will be editing the registers in my code. Much of my initial IMU concept requires little reconfiguration, and I can save RAM and ROM by just moving ADC inputs about and adjusting PGA gains instead of saving a configuration for each sensor lead (double and triple ADC). Also keeps me from interrupting critical SPI/I2C communications if the reconfiguration utility isn’t smart enough to realize what’s “hardwired”