If you are having issues with your iPad's Wi-Fi behavior Apple has a support document for that. While some of the solutions are a bit obvious, one is very strange.
<a href='http://meincmagazine.com/apple/news/2010/05/apple-offers-possible-solutions-for-ipad-wi-fi-problems.ars'>Read the whole story</a>
<a href='http://meincmagazine.com/apple/news/2010/05/apple-offers-possible-solutions-for-ipad-wi-fi-problems.ars'>Read the whole story</a>