Given that it's a DSi title with "Express" in its name, the logical conclusion (what other kind could you use when talking about a puzzle game?) is that this is an upcoming DSiWare take on the classic Nintendo puzzler last seen on DS as Planet Puzzle League. After all, we've already gotten Dr. Mario Express and Brain Age Express. Of course, Nintendo could always be releasing a highly illogical Puzzle League themed train sim, but we doubt it.
[Via GoNintendo]
