After a quite long testing period with various NICs, I've eventually prepared a first downloadable version of my HPTNF. It is Linux based for now, but I hope to get an OpenBSD/EFIKA version up and running someday, too :-)
 hptnf-lx2.6.21.5-14-irfs.img  hptnf-lx2.6.21.5-14-irfs.md5 For a more detailed progress report, etc., cf. 
 my EFIKA Projects Wiki