We figured Apple would've learned its lesson after the UK's Advertising Standards Authority banned those "the real internet" iPhone commercials, but it looks like Steve's back in detention -- the ASA just ruled that another ad claiming that the iPhone is "really fast" is also misleading enough to be pulled. You've probably seen the similar US version of the ad, which shows the iPhone 3G loading a web page, switching to Maps to locate itself, downloading an attachment, and then finally taking a call, all in 30 seconds -- yeah, that doesn't happen. Apple claimed that its "Network performance may vary by location" disclaimer was enough to keep it safe, but the ASA wasn't having that: it said that the ad was likely to lead viewers to believe the iPhone was really that speedy. Of course, we're pretty certain most people understand that reality and advertising don't really have anything do with each other, but we're not the ones in charge -- just wait till the ASA finds out that drinking gallons of beer doesn't actually make you more attractive. Check the ad in question after the break.