Hello. I'm trying to start a cortex M4 based project and found your STM32 M0 MCU and Interface to Breadboard on newbiehack. I saw your name was listed as the author and it led me to here. Is this boar

Yes, the board and kit is available and for sale. If you need the board without the chip installed (so you can solder the chip on the board yourself), we can offer that. Give us a call and we will let you know the price of that option.