Here's the official statement from Nokia:
"We have noticed a number of media stories about N-Gage game transfers and wanted to clarify the issue. Due to copy protection, N-Gage games, like most mobile games, are linked to one device. As the value of content increases, a robust copy protection mechanism is essential as it makes it possible for the games industry to invest in N-Gage content.
We acknowledge our customers’ concerns and have been working on a solution that would allow people to transfer purchased N-Gage games to a new Nokia device. We are working with our Nokia Care Centers with an intermediate solution to enable the licensed transfers of games until a final solution is ready to be deployed.
We apologise for the confusion around this issue and look forward to delivering an appropriate solution to transfer purchased N-Gage games to new Nokia devices."
From the earlier version of this story: There's also a post about this on Nokia Conversations, an official Nokia blog. It says that 'a fix is in in the works' and initially this will be facilitated through Nokia Care, but there is also 'a long-term fix in the works'.