Antennagate Death Grip" furball, fragility, and screens that aren’t very readable in sunlight (but really, that's a common problem with non-e-ink screens).
At least one of the comments criticized the campaign for being negative, pointing out that negative campaigns never work (except, perhaps, for in politics).
They all feature the same set of three employees, with one bringing up a problem while the other two mock him.
The ads don't specifically make reference to manufacturers such as Apple, but the Antennagate reference and the fact that the iPhone 4S is the top single smartphone make the target clear: despite being pixelated, it's obviously an iPhone.
Right now the website simply has the three ads and a video of 30 Rock’s Chris Parnell in a super tiny video saying "if you've ever had the nagging suspicion that your smartphone was actually a borderline defective, glorified prototype in some kind of secret product test, you may have been on to something.” The site doesn't even talk about Windows Phone or the Lumia 900.
There is also a countdown clock which will reach zero on April 6, two days before the Lumia 900 actually hits AT&T retail. We assume there will be a sudden change in ads on April 6, focusing on the Lumia.