Apple has today released iOS 3.2.1 for the iPad, which fixes some bugs and adds some improvements. Probably the number one fix on the list is the improved Wi-Fi connectivity, which appears to have solved a problem that many iPad owners have had with weak Wi-Fi signals. Going by the latest postings on Apple’s iPad support board, the update seems to have solved those problems for many people, although one person said that installing the update had totally bricked his iPad, which is a bit worrying, as is the fact that ZDNet writer Adrian Kingsley-Hughes also said that installing iOS 3.2.1 “hosed” his iPad. Should your iPad remain intact after the update, you’ll also find that Bing has been added as a new search option in Safari. Other fixes include repairing an issue that could possibly prevent copy and paste of single-page PDF attachments in Mail, and addressing another bug that could cause video playback to freeze.