Jaku, easily my most favourite theme on the iPhone, has at last come over to the iPad. William Szilveszter, the creator of the theme, has gone through every icon all over again so they fit absolutely perfectly on the retina iPad.
Unfortunately I don't have a retina iPad to try it out (above is just a screenshot of the theme on my iPad Mini) but I'm sure it's just as fantastic as it is on the iPhone.
It's available on Cydia right now and William has promised to fix any bugs and include more and more icons, like he has with the iPhone version. Just remember, this theme is only made for the retina iPad.
Check out the iPhone version of Jaku.