As noted by ThisIsMyNext, a prototype iPhone 4 appeared on eBay this weekend. This prototype iPhone 4 has many of the signs that it is a pre-release device. The volume buttons don't have the + and - markings as the production models have, and the FCC ID, Size and Model numbers are X'd out on the back casing. The eBay description details the findings:
1. iPhone has wear on the frame, some small marks on the rear cover, small marks on the screen. No cracks and no deep scratches.
2. Volume buttons don't have the usual + for upper button and - for lower volume button
3. Phone will not activate on at&t and when syncing with iTunes it says that this phone can not be activated with at&t sim card it won't activate (please review picture #10)
4. On rear cover Model No.: XXXXX FCC ID: BCGAXXXXX IC ID: 579C-AXXXXX (please review picture #8)
5. Front screen and rear cover has some type of numbers printed on the inside.
The iPhone 4 prototype is notable for being one of the most leaked Apple devices ever. A prototype of the device was said to be found in a bar, after which it was sold to gadget blog Gizmodo. The site then did a tear down and analysis of the device well before its launch.