Samsung Showcase 2004
This is the Samsung SGH-E850. Unfortunately, like most of Samsung's E800-series phones, it's a dual-band model for Europe and Asia only. But it has one interesting feature that I thought made it worth mentioning anyway...
This is very similar to the super-small E800, E810, and E820 GSM slider-phones for Europe, except that the design is a bit more aggressive and stylish, in my opinion.
But more importantly, the camera has been moved to a very unique "pop-out" design, that combines full swivel action with an effective lens cover mechanism. Surprisingly, the pop-out mechanism doesn't seem to add much bulk to the phone - it's still quite small.
Like most well-designed camera lens covers, opening it automatically activates the camera function. It's actually a push-in / push-out mechanism, so a simple push right on the large camera "button" both reveals the camera and activates it.