Take this for what you will, but one of our ninjas tipped us off to an iPhone ad currently being Portugal by wireless carrier Optimus, which is a subsidiary of Orange. According to the ad, Optimus is going to be offering the iPhone 3G with a monthly tariff on both post and pre-paid accounts. Yep, you read that one correctly. While AT&T has explicitly said that they will not be offering the new iPhone 3G with any sort of pre-paid options, it looks like other carriers are reserving the option to provide the handset without a lengthy contract. The ad doesn’t give any indication as to what we might expect the unsubsidized pricing to be, but we’re working hard to dig up that info. Unfortunately, we’re not expecting any miracles here on the US side of things, as AT&T has been very explicit about the contractual requirements of the iPhone agreements. Remember when the rest of the world was madly trying to import American iPhones? Things might be going the other way this time around.