You probably thought exactly the same thing I did when I first saw Piet Jonas' tip: the iPhone as a digital picture frame? That's a pretty darn expensive digital picture frame. And his tip is pretty simple-- all he suggests is to turn off the AutoLock feature on the iPhone, thus leaving the screen on to display a slideshow. At first glance, it's not that big a deal.

But the more I thought about it, the more genius it was. I've been pining after a Nabaztag lately, and an always-on iPhone just sitting there on the charging dock could serve exactly the same purpose-- you could have it spit out the time, constantly updated stock info, or even watch your email come in. With Piet's suggestion of webcams, the iPhone could work as a little monitor right there on your desk. And if Apple ever gets this rumored RSS reader off the ground, you could watch RSS headlines fly by on that screen. When you think of all the things you could display on an iPhone sitting in the dock, it's not a bad picture frame at all.

Any other ideas of constantly updated information you could put on your always-on iPhone?