I used several BeagleBone Black boards for a project a few years back. They were powerful and had great features for the price.
I’m excited for this one; 4GB on-board flash is going to make the whole experience soooo much nicer than an SD card. Two 32-bit PRUs also sound really cool.
I don’t think it’s a threat to the Raspberry Pi, just because it speaks to a different audience, exists at a different price point, etc. Good to see how many options there are in this market now.