Saw these guys for the first time - they're based out of Sunnyvale.  For $2000, and your iPad 2/3, you can have your very own remote telepresence robot to be there, without really being there.

One will run you about $1999 right now, before the price goes up when finally released.  All things considered, that's actually fairly priced.

Too bad there is no charging dock right now, nor is there an automated patrol type setup.  SDK and APIs are available for developers to add those features.