Just had a quick watch of the video. I’m not at all shocked that a device with twice as much memory is able to hold more apps/games in memory.
I currently have the following apps/games open:
Safari
Traffic racer
Traffic rider
Onenote
Sniper 3D
Messages
Clock
Mail
Marine Traffic
Due
Textastic
Git2Go
Settings
iBasket Pro
Music
App Store
When I switch to each one, they are instantly responsive with zero loading.
Of course if I just keep opening more apps, some will eventually need to reload, but I have to ask......how many apps do you need to flick between at any one time. Also, if I don’t use an app for a few hours, is it really a problem if I have to wait a few seconds for it to reload when I go back to it.