Vista - Vista Wireless Laptops

With XP almost gone, and Vista here, I wonder what do you do with wireless
laptop travellers. If you install vista on a laptop via wireless connection
on the domain it doesn't save your settings. It must be hard wired, and to
me this defeats the purpose of laptops and travelling. Vista doesn't cache
the account the way XP does and basically laptops using wireless connections
are useless if they are not connected to te domain. If they travel they
can't use their setting? How do you deal with this issue?