GIven that SFE sells the blueboard, and the LPC4330-Xplorer is made by NGX, seems like a nice offering for the SFE site. That or Olimex/SFE could offer a Cortex-M4 low-cost development board. There seems to be a need given the M4 is more DSP friendly (not a DSP, but DSP friendly).
FYIW