Another interesting -- if perhaps somewhat gimmicky -- new feature is face unlock, which unlocks the Galaxy Nexus upon recognizing your face (or a picture of your face, as it turns out).
"He needs that fame in order to get the communication out as far as he can, and he's been very, very clever about keeping his faceout of it, " said Liz Farrelly, whom Banksy called up in the late '90s when she was working on "Scrawl, " a book about street art.