Sealand isn't a great example considering nobody recognizes it as a country. Tuvalu might get away with it since they would've been a "real" country in the past.
That brings to mind some interesting ideas. One of the "business models" for Sealand was to be a "data haven", i.e. offer online hosting of data in a jurisdiction which didn't allow searches or seizures of data or servers. Could Tuvalu provide a similar service, possibly from within the territory of a nation which grants them a legally autonomous region?
Similarly, I wonder what would happen if Tuvalu decided its laws should not recognise copyright as a concept any more. The government could run an official "legal" file-sharing site and other countries would have to decide whether to prevent their own citizens from accessing it. I imagine these other countries would lose a lot of sympathy for the people of Tuvalu if such a site were created, though.
I assume he just meant a platform resembling that although it should be apparent that would come nowhere close to the size, beauty, or natural wealth of the current islands.