UPDATE: This has been fixed as of Twitter 3.2.
While Twitter is a universal app that supports multitasking, the way that the iPad version has been coded means that in it’s current state, it will never save account details, as the way that an application has closed has changed between 3.x and 4.x thanks to multitasking.
One way to fix this is to ‘disable’ multitasking for Twitter for iPad. While this means you can’t zip in and out quite as fast as you’d be able to while multitasking, at least this means you won’t have to enter your account details everytime the app crashes, you reboot your iPad or it simply runs out of memory while using other apps (this happens a lot more often than you think, thanks to the iPad’s onboard 256mb of RAM – in comparison the iPhone 4 has 512mb RAM). Due to the relaxed restrictions under iOS 4.x, you can now modify ‘some’ files on your iOS device without needing to be jailbroken.
The following steps will require the following:
If you don’t have a Mac, skip to the end of the post for more information.