Don't worry in a couple of months you will see a windows laptop with a 17" lcd. Now I wonder how much it would cost though. It might be a couple hundred less than the mac.
Now the apps, apple has started improving and gaining more publishers to make mac programs. Because OSX is unix based, programs for unix can easily be converted for the mac.
There is already one set of programs called , i think, 10 Unix apps for X.