@shama I'm in agreeance as regards the fist bumping, and there'd probably be a real market for 'proper' jewellery with a single inlay that was unobtrusive. I'd hate for the two inlay version to ever just disappear though, especially if manufacturers start making phones with better nfc! There may yet be the chance to proper fist bump a strangers phone without just being scary and weird.
I've been trying to find the link to the inlay colour chart, and I'm pretty sure I saw a prototype/early production ring that actually had a titanium coloured inlay and that looked extremely Stealth with inlay and band the same.
Long Suffering Girlfriend was originally getting titanium/white cf/white but has gone with the geeky option of titanium/transparent/white and should be suitably impressive, and single inlay wedding bands have been mentioned as a romantic possibility.
@RevInstant, I think we'll have to get @johnyma22 to weigh in on that one, especially if there are single stealth carbon fibre orders that were already being substituted for plain black with a voucher.