I do not think the scenario that you describe would make sense from the business perspective or PR perspective. It's obvious that taunting customers who bought your most expensive product like this is very, very bad for PR and does not bode well for long-term profitability. Furthermore, if Nokia has a demo of Meego on the N900, it means they spent money on this effort. From a systems engineering perspective, it would take just a wee bit more to bring it out to market.