Parts of Europe strike me as the ones most likely to lead the charge (the Swiss had an actual vote on Basic Income just recently) and many existing benefit systems (welfare systems) come fairly close to a ad-hoc de-facto basic income.
Assuming the basic income is sufficient to cover basic needs, I'd be quite happy (as long as I could afford a reasonable computer and internet) to just write open source software for the rest of my life.
The only reason I write any proprietary software is to pay the bills with that incentive removed I'd program just as much.