I dunno. The "Really?" ads (which I've only seen online) are a bit strange. I get the idea that it's supposed to show you can dip in and out and get on with your life, but I think the execution of the ads, and even what they're showing, is questionable. It doesn't show particularly well why WP7 is good at quick look access for basic info (speed, clear simple layout, services all combined in one area, information shown on tiles etc - you see that for all of 2 seconds right at the end with one shot of the start screen, with no explanation whatsoever about what it is) and it also could unintentionally put across the idea that WP7 isn't enough to hold your interest. Sure people get distracted by phones, but they also enjoy using them for fun - which is why they're distracting mainly, not because it takes 1/2 an hour a go to check tweets/texts on other formats compared to WP7.
It's advertising something that also isn't true in a way. WP7 might tell you e.g. how many emails you have at a glance (as, to be fair, do most other OSs), but it doesn't have some magic way to let you read them any faster. You still have to go in and do that. I'd love to see if there were some stats that show people use WP7 phones for less time and get the same amount done, but I'd be willing to bet that it actually works out to be much the same amount of time as other smartphones because people are probably doing the same things - sending tweets, reading facebook posts, sending/reading emails, looking up things on the web, playing games etc. WP7 can't do any of those things any faster because they can't make the end user read faster or make the mobile internet faster. So when you think about it, what they're actually saying is with WP7 it's probably marginally faster to get low-level information such as no. of emails, no. of tweets, no. of FB updates, basic weather, than other formats - and that's it. And then it's arguable that with full widgets on Android you could get more information in more or less the same time, so it might not even be WP7 is best.
So yeah - I think as soon as you stop to look at those ads, they really let WP7 down by just not showing it and not showing its biggest strengths.