By Samsung. First Froyo (2.2), then Gingerbread (2.3).
No release based on Ice Cream Sandwich a.k.a. ICS (4.0) planned.
No release based on Jelly Bean (4.1) planned.
CyanogenMod, a.k.a. CMEdit
Feature-packed custom MOD
CM 7 is based on Gingerbread
CM 9 is based on ICS
CM 10 is based on Jeally Bean
From Wikipedia : MIUI (pronounced "Me You I", a play on the common abbreviation of the words user interface as UI),developed by Xiaomi Tech, is an aftermarket firmware for cell phones based on the open-source Android operating system. MIUI itself is closed source. It features a heavily-modified user interface that does away with the Android app drawer and has drawn comparisons with Apple's iOS and Samsung's TouchWiz UI. The Custom ROM includes additional functionality not found in stock Android, including toggles on the notification pull-down, new music, gallery, and camera apps, and an altered phone dialer that displays matching contacts as a user enters a number.
Android-based ROM that mimics iOS
Joyos Mimicis the same Functionality and Graphical UI Of iOS
1.Modded Framework And Sysytem UI With iOS Taste
2.iOS alike Music Player
3.iOS alike Keyboard
4.And much more iOS