Does someone really think that average consumer understands that because of multitasking UIs fluidity might not be on same level as on competitors products? Do people even recognize true multitasking? Do they appreciate it so much that they will not demand so much from UI speed? I doubt.

btw. Even single tasking is sometimes bit jerky (low fps on animations, animation stutters, slow rotation, kinetic scrolling in photo/albums) :|

Actually what Apple has made is quite clever. They can probably add true multitasking to their product at anytime. Has anyone really thought about that?

.edit
Had to add. That if you got slow UI then please try to remove widgets and reboot phone and see if it makes it faster.