We've received a blitz of emails from TUAW readers who have been pulling their hair out about an issue that appeared after they upgraded their iPads to iOS 4.2.1.
As described by lots of users in the Apple support forums, Wi-Fi connectivity slowed dramatically after the upgrade. There seems to be no rhyme or reason to the slowdown, as it is affecting new and older iPads, people using Apple or third-party Wi-Fi routers, and a number of other variables.
Apple doesn't appear to be acknowledging the problem, much to the extreme frustration of iPad users who are having the problem. On the other hand, it may not necessarily be a widespread problem. A quick survey o
