There has been a problem with Apple laptops for at least 3 years.
Check on their own forums. There are numerous threads with people reporting the signal will just drop for no reason what so ever.
I would agree there are probably issues, but I also feel that there are things people can do to alleviate lots of problems to create a more stable environment, and lots of people create their own problems or don't understand what is actually happening). Networking is an art. To get it done correctly can be a finesse thing. Most people feel that it is all plug and play (and the manufacturers would like to make it so, but there are too many variables to consider).
I have seen people set the key recycling and expiration times on DHCP so low (thinking it will make their systems more secure, less = better in this case), that they are constantly being recycled and in large environments it causes IP crashing as the server is constantly trying to recycle IP addressing. I consistently survey my area and have found at least 11 different SSIDs at any given moment (6 are running the standard settings, some without encryption, and on the default channel 6) tell me this won't cause issues?
The posters were coming here asking for help and I thought I would offer some solutions. I have 2 new MBPs and several other computers on my home network. I have none of the issues reported by these 2 posters, so I thought I would help rather than just write it off. I have defined my network as such that I can completely control it locally and remotely, and I find that the wireless in these new models have been the best of the last few years. What was a limitation on prior models due to location (weak signal) has been resolved on these. You can't compare a desktop (iMac) that is used in one never changing location (probably close to the router a swell) to a constantly moving and changing system like a laptop(unless of course you are using them only int the exact same place (location makes a huge difference)). Which begs the question are the settings exactly the same on the two systems. These things can help one to troubleshot and narrow down the issues, be it hardware, software, or other.
Call me lucky, but I thought I would just offer help. RF is a magical and wonderous thing. I am FCC certified in Rf repair, transmitting, and propagation, so I try to find issues that may be related to factors most don't think about before I write off the device itself. Just because someone posts about it doesn't make it a "true" issue (like the heat reports with the new MBPs, they do get hot, but very few notice anything, and the lots of the earky problems turned out to be software related and not hardware) as the posters over at the Apple forums are the same average people that post everywhere else on the internet, not Apple employees (at least rarely are they Apple employees).
