Apple updated wireless?

As I mentioned in the Apple Discussions I had issues with the 10.4.10 update of Mac OS X. It seems they finally issued an update for wireless named 'Airport Extreme Update 2007-004'. It says it will improve the reliability. I hope so, since without the power plugged in, the notebook will crash when using wireless! I can accept having a problem with software reliability, since I used Windows a lot for work... but I don't like companies that deny they have a problem. I doubt they completely fixed it. Some reports can be found here and there.