Tunisian crochet.. (afghan stitch is just one of many stitches used in tunisian crochet)
Tunisian crochet a long needle with hook at the end.
but portuguese knitting also uses needles with hooked ends.
the needles are always dpn's, one end hooked, on end pointed. the knitting is worked in an uncommon way (with the thumb, and the knit stitch is like a reversed norwegian purl!)
you can learn more about portuguese knitting
1-on my blog
2-on Youtube (links on my blog)
3--from Andrea Wong (the wong way of knitting (dot com)