iFixit

The battery from the Pre on the left, and the iPhone 3G on the right. Although they're different shapes, both weigh in at 23 grams.

In contrast to Apple's iPhones, the battery on the Pre is user-replaceable. Thanks Palm!

The back of the phone and speaker.

The speaker in the Pre is substantially better than the one in the iPhone.

Palm didn't skimp on antennas. They're exposed for all to see as soon as you remove the back panel.

The antenna design is three dimensional to optimize signal quality. The iPhone's antennas also use this technique.

The small sticker labeled palm visible in the third image is probably there to prevent people from doing what we're about to do...

Removing one of the six T5 screws required to seperate the backplate from the phone.

The screw in the upper right corner is covered by a sticker labeled "Palm."

There are interlocking tabs securing the backplate.

Carefully work around the phone releasing the tabs as you go.

We found two antennas.

One was labeled GPS (its obvious what its for) and the other one was labeled DIV (for diversity antenna - thanks microbreak!).

The two volume buttons are still connected to the front half of the phone. Completely separating the two halves requires first removing the plastic volume button cover, then peeling up the volume button electronics.

The back frame seperated from the rest of the phone.

Two connectors need to be disconnected in order to remove the black PCB.

The PCB is glued to the rest of the Pre. A gentle pry with the spudger separates the two.

Removing the keyboard bezel.

The hardware keyboard and its associated sliding mechanism weighs 32 grams. That's nearly 25% of the weight of the phone! Even if you're not a fan of a hardware keyboard, there's no denying that packing the keyboard into a device that's not much larger or heavier than the iPhone is a very impressive engineering feat.