Like sharks to blood, so eBayers to an Apple collectible. An iPhone 4 prototype has appeared on eBay, and bidders are apparently in a frenzy. The current bid (as of 10:30 a.m. ET on Monday) is for a staggering $999,999.01.The seller, who claims to be a "licensed cell phone repairman," says that this is a genuine item, possibly used by Apple during the iPhone 4's pre-launch testing period and intended to be used for spare parts.Read More... More on iPhone 4