Shueisha is launching a Death Note Smartphone app., as part of the avalanche of goodies available to fans marking the 10th anniversary of the manga's release.
The scant information on offer suggests that the SPK in Japan is looking for volunteers to think like Kira. That means genius deduction and following clues. I'm assuming that Near wrote them, considering the source. (Unless it was one of his staff members, in which case we won't have had to graduate from Wammy's House to solve the riddles.)
Upon downloading the Death Note smartphone game, you will be presented with a cipher. You won't be able to progress until you've decoded it, then you'll venture deeper through the levels.
The whole package is framed like the crowd participation Death Note Real Escape games, which will be held in Japan from May 30th.
Unfortunately for non-Japanese speakers, there's no indication - as yet - that the Death Note Real Escape App will be translated into any other languages.