I'm hesitant to say that I may be affected. Maybe. I have been noticing poor wifi reception when I'm downstairs in my house on the couch, with the Apple router being upstairs - I'm basically in the worst spot (diagonal across floors) for wifi reception. I've noticed that I will consistently get one bar of wifi reception on the iPad 3. And while I haven't done any comparison yet, I don't think my iPhone 4S gets such poor reception, surprisingly. (I am at work now. I will check when I go home). Nor any Mac laptops, but I assume they use much more powerful wifi antennas.
Moving over to the next room - closer to the router but still on the floor below - it will change to 2 bars of wifi, which I've noticed is pretty much the same as the iPad 2 we also have in the house.
I'm hoping it's nothing (or can be fixed via software if it's indeed a problem). So far, it's not a big deal to me. I'm not having any trouble with wifi actually disconnecting or re-establishing a connection.