Just added something to my Iphone.

[EAF]

Spoiler

I thought it was pretty cool
They even hop like in the video.

 

[Terrio]

How did you add nyan cat?
Can you show us please? and does it work with ipods?

 

[EAF]

You have to be Jailbroken.

Go on Cydia,
Manage>Sources>Edit>Add> http://ihacksrepo.com>Accept everything, and let it reload.

Go to Sections>IHR Tweaks> Nyan Sliders.

 

[eXero]

That looks legit! If I had an iPod I would get Nyan Cat Sliders