Hey that's pretty slick! Fast too.
I've been wondering about knitting a pocket into a split-braid style frame, but maybe crochet makes more sense. You certainly would have a little easier time handling only one stitch at a time. You'd get the benefit of a solid cupped pouch using only one strand, as well as the ease of construction and strength of the braid. Incorporating colour would look great.
Are your increases along the edges of the pocket or "inside" the pouch? I've worked mine three stitches in from the edge, which causes the cupping, but I'm pretty sure I could get away with putting them closer. Makes an interesting pattern. One of these days we're going to have to start using higher visibility yarns for these projects
Tough to make out much detail in both of our pictures... Where's Willeke? she's turned out a few real lookers!
Matthias