Wofford, an iPhone 3GS owner, claims that since she upgraded her device to iOS 4, her smartphone has experienced slow keyboard response times, lag, and fast battery drain.
She is certainly not the only one to have the same experience. iPhone 3G owners, especially, have complained of the same symptoms since updating their devices to iOS 4 in June.
In the suit, Wofford claims that iOS 4 has made her 3GS practically unusable, and Apple has left her no options but to upgrade to the iPhone 4 or jailbreak her device so she can downgrade back to iOS 3. The latter option is legal, but will void her warranty.
Wofford is looking for class action status and asking for $5000 USD for everyone whose phone is now unusable after the update.
Cnet has posted the full suit:
iOS 4 Lawsuit