According to the release notes, iOS 3.2.1 includes a number of bug fixes and improvements including a fix for the Wi-Fi connectivity issue that Apple had acknowledged.
As per release notes, iOS 3.2.1 includes the following bug fixes and improvements:
Improved Wi-Fi connectivity
Fixed an issue that could prevent copy and paste of single-page PDF attachments in Mail
Addressed an issue that could cause video playback to freeze
Improved reliability of video-out when using iPad Dock Connector to VGA Adapter
Added Bing as an option for Safari's search field
But if you don’t care about jailbreaking then you can update your iPad with iOS 3.2.1 via iTunes.
As always, please don't forget to tell us how it goes.