In doing so they were surprised at how little Jobs Mob has changed from the earlier Wi-Fi model.
Apparently the inside is full of more antennae than a cockroach convention. There is one for Bluetooth, GPS, 3G and Wi-Fi. One of the antennae is in the plastic RF window.
The other is hooked up to the LCD frame, running round the entire edge of the iPad. HP uses a similar idea on its laptops to boost signals. The idea is supposed to max out the reception although so far the iPad has yet to show it.