Say, I have 0.3265128 of a bitcoin.

At a Saturday yard sale, I see and haggle down a Taig Micro Lathe 3" 3-jaw chuck for $11.50. The seller is familiar with bitcoin only through recent media coverage(as I also) and is interested to weigh in with a bitcoin payment. My phone app evaluates:

$11.50/Today's-Up-To-The-Second-Spot-bitcoin-Price decimal fractional bitcoin value,

generates QR code of this value, and whatever transaction necessary `provenance' bitcoin record keeping,

he captures it with his phablet, and ... we're `Golden'?

May a phone app exist, creates a new user `wallet'(...and its bitcoin ledger protocol, etc?) be possible, so these small(micro) transaction occur on the fly for we: marginal: single, and sub-fungible low-rollers "shiny and new" bitcoin enthusiasts? May we easily and securely balance our own phone app ledger to:

"put forth thy hand, and behold our own shard of glorious bitcoin"?