Folks, I got the Speck SeeThru case for iPhone 3G, and this is the first case that I actually want to keep on the phone! Got the Diamond Clear version, even though they come in colors too. Awesome case! Best I've ever used. I used to have the ToughSkin for my 1st Gen iPhone, and although it was truly a beast of a case, since I like to put it in my pocket, the rubber made it tough to get out of my pocket. This case is the best of all worlds--clear plastic case that doesn't add much bulk nor weight to the iPhone 3G--it has rubber grips on the side so it doesn't slip out of my hand when I'm on the phone. This is a must, and something that always kept me away from the plastic cases--felt like a bar of soap. The chrome and all plastic back and sides are protected. The coolest part is the bottom of the case slides right off (gotta grip it by the front bottom) and allows me to place it in the dock at work for when I play music...or the bottom of the case can be turned on its front to use as a stand to watch movies. Brilliant! This is the first case I'm actually happy with.
If you are looking for a case that lets you show off the sexy iPhone 3G, but yet is protective, functional, and has a bit of rubbery grip where you need it, look no further! And only $30. Good deal.
http://www.speckproducts.com/product.../iphone-3g/142