According to his twitter feed, developer Peter Molyneux can't call his game/project "Curiosity" because of NASA. Molyneux's twitter post reads:
"Humm there is a problem the the name curiosity, we can't use it because of NASA. I wonder what one word would sum up curiosity:the cube."
It's not a case of the space agency coming down on Molyneux's company, 22 Cans, and demanding a name change, though. The actual explanation is much more mundane. According to Molyneux:
"The name change is prompted by the need to have something simple to search for in Google. This worked well for 'Curiosity' but since NASA: Curiosity is now obviously generating a lot of interest we need to change the name."
Regardless of the reason, twitter is on the name-change case, with followers of Molyneux tweeting suggestions like "Cubiosity," "Pandora," and "Intrique."
The Game Formerly Known As "Curiosity" is set to come out in September.