While the promise looks good, there might be arguments about who gets how much of a pie from the results (and potential benefits) arising from such deep space exploration.
The blackmailer had gotten hold of the Symbian encryption key used for signing. The code is a few kilobytes in size. Had the key been leaked Nokia would not have been able to ensure that the phones accept only applications approved by the company.
Their idea of an offer you can't refuse is an offer... and you'd better not refuse.