I cannot fin in ANY forums. WHAT PEN IN THIS WORL WILL BE COMPATIBE WITH THE HP 15-BK020WM … I find it unacceptable to make a laptop that is touch screen and offering workspace… and yet NO PEN? COME ON! WAY TO STEAL MONE FOR A NONEISTENT ALSE EXPERIENCE!… AN YES… at this point I have every pen in my house om HP AND othe manufacturers… not cool