We don’t know how he’s done it by now, but we have an idea about how he’ll keep to the schedule this year :). It’s Santa we’re talking about, of course. The trick is, you guessed, a new personal assistant to help him with his Christmas duties.

And it’s no wonder that help comes from an innovative technology, as it’s not quite a human task to keep up with no less than 3.7 billion appointments per one night. We really like this Christmas commercial by TBWA Los Angeles for the iPhone 4S, featuring Siri, Apple’s voice-controlled personal assistant.

It’s such a clever advertisement that it doesn’t event even need to mention Siri or iPhone by name, playing entirely on brand recognition…