First things first, what is iMIUI? MIUI is an Android ROM, built by the folks over at Xiaomi Tech. And iMIUI is a large-scale iOS port of that ROM, wrapped up in the form of a WinterBoard theme. The developer claims t could be the next ayecon, which is the most popular in the jailbreak community right now.
It has icons for every stock app, and several third party ones. And it replaces a number of UI elements like the Lock screen, the Status bar, the dialer, etc. It’s extremely extensive.
Perhaps more impressive, though, are the little touches. Blue accents have been replaced by Orange ones. And both radio buttons and toggles seem a bit more soft around the edges. I must say, the level of detail here is striking.
But above all else, iMIUI is just a really good-looking theme. The icons, which are the most important part of a theme, look excellent. They’re crisp, they’re understated, and very well designed. And the same goes for the various UI tweaks.
To install the theme, you’ll have to add http://cydia.myrepospace.com/imiui/ to your Cydia sources by tapping Manage > Sources > Edit > Add. It’s iOS 6 and iPhone 5-friendly, but at the moment there’s no iPad version available. And it's free, Chinese always do something free.