Android Jelly Bean 4.1.2 (JZO54K - Android-4.1.2_r1)
Ultimo Kernel CM
Todas las caracteristicas y aplicaciones de Jelly Bean  (Nada excluido de AOSP)
Sin cambios visuales!
Tema y apariencia pura de Jelly Bean
Transforma tu Samsung Galaxy S II en un Galaxy Nexus Jelly Bean

Fully Deodexed
Zipaligned APKs
Rooted (Super SU)
BusyBox Installed
No 3rd Party App
ZERO Bloatware
Android Source Code vastly improved and optimized (i.e. Bionic, Dalvik, Webkit, Framework, libcore, SQlite etc)
Official Jelly Bean Bootanimation (From Official Galaxy Nexus Android 4.1.1 Factory Image)
Init.d Support
Bash & Nano Support
Native SIP/VOIP Support
HSPA+ Support
OpenVPN Support
EXT4 File System Optimizations
Boot Animation Performance Enhancements
Galaxy S II Device Settings as an App
Huge APN & SPN List
Naver-Fonts Support (Will greatly increase Korean font readability)
Extended Power Menu (Reboot, Recovery & Download Options)
Device Hardware Information (Settings>About Device>Hardware Information)
Tweaked Progress Spinners Values (Silky Smooth Loading Spinners)
Allowed Any File-Type To Be Downloaded
Allowed Installation Of Apps From Unknown Sources By Default
Disabled Data Roaming By Default
Improved Scrolling Cache
Reduced Boot Time
Options for switching between USB Mass Storage and MTP/PTP (On Specific Devices)
WebKit Highly Improved and Optimized (Ultra Smooth Browsing)
Camera Features:-
-Burst Shot (Up to 20 Images at once)
-ISO Mode
-Touch Focus Duration 
-Power Shutter (Click Power Button To Capture Image/Video)
-Color Effects
-Shutter Timer
-Zero-Shutter Lag (On Specific devices)
Browser Features:-
-Increased Maximum Tab limit from 16 to 64
-Implemented WebGL Support
-Incognito Tab Option (When long pressed on an URL)
-Option To Close All Tabs With One-Click
Phone Features:-
-T9 Dialer Support
-Landscape Dialer Support
-Disabled Accelerometer while in-call and screen UI is off (Saves Battery)

Sin FM-Radio [usar Spirit FM link en descargas]
Not Buttery smooth but still nice
Found one ? Report it.

Clockworkmod Recovery (CWM)/Any custom recovery
Limpieza completa si vienes de otra rom

Copiar Google Apps y la ROM en la SD interna del movil
Entrar en Recovery
Hacer limpieza completa del sistema (wipe data, wipe cache, wipe dalvik, format cache, format systema, format data)
Flashear Android 4.1.2 JB ROM
Flashear Google Apps
Reiniciar tu telefono
Voila!

SuperNexus I9100 BUILD 5 (17-10-12)
SuperNexus I9100 BUILD 4 (07-10-12)
SuperNexus I9100 BUILD 3 (30-09-12)
SuperNexus I9100 BUILD 2 (11-08-12)
SuperNexus I9100 BUILD 1 (05-08-12)

Google Apps:
Google Apps JB 11-10-12 - Mirror1

Source Code:
CM GT-I9100 Kernel @ Github

Radio FM:
Radio FM

SuperNexus I9100 BUILD 5 (17-10-12)
Merged Android 4.1.2 (JZO54K) - Android-4.1.2_r1
Minor Fixes and Optimizations
I9100/I777/N7000: Mali Code cleanup
I9100/I777/N7000: Fixed bugs in new Mali Driver
I9100/I777/N7000: CPU Hotplug changes
I9100/I777/N7000: Fixed Network Location Bug
I9300: Slightly Lowered Speaker Volume
I9300: Fixed Network Location Bug
I9100G: Fixed Network Location bug
Camera: Fixed Power Shutter issue when in Gallery Mode
Framework: Optimized and Improved EGL Code
WebKit: Performance Enhancements, Optimizations and Improvements (Browsing is ultra smooth)

SuperNexus I9100 BUILD 4 (07-10-12):
I9300: Fixed RIL Wakelock
I9300: Fixed Battery Drain
I9300: Reverted back to old WiFi Driver (New one was causing major wakelocks)
I777/I9100/N7000: Fixed RIL Wakelock
I777/I9100/N7000: Fixed Battery Drain
I777/I9100/N7000: Fixed Memory Leak
I777/I9100/N7000: Made VSync uevents optional (Current HW Composer doesn't need this and by disabling this we save A LOT of Battery)
I777/I9100/N7000: Updated Mail GPU Drivers (Not butter but Ultra Smooth!)
I9100G: Fixed RIL Wakelock
I9100G: Fixed Battery Drain
Framework: Tweaked Animation Values (Animations are now 2x faster)
Phone: Fixed Proximity Sensor issue while in-call
Browser: Added option for Incognito Tab
Browser: Added a menu item in Browser called Close other tabs

SuperNexus I9100 BUILD 3 (30-09-12)
Built SuperNexus from scratch
Vastly improved, optimized and fixed Android Source Code (i.e. Bionic, Dalvik, Webkit, Framework, libcore, SQlite etc)
Added support of other OEMs into SuperNexus' Source Code (HTC, Motorola, LGE, Sony, Samsung)
Updated Source Code to Android 4.1.1_r6 (JRO03R)
Updated SuperSU App and Binary
Updated APN List
Added WebGL Support
Added HSPA+ suppport
Added Naver-Fonts Support (Will greatly increase Korean font readability)
Fixed SIM Pin popup issue
Added new Camera Features:-
-Bust Shot (Up to 20 Images at once)
-ISO Mode
-Touch Focus Duration 
-Power Shutter (Click Power Button To Capture Image/Video)
-Color Effects
-Shutter Timer
-Zero-Shutter Lag (On Specific devices)
I9300: Fixed HW Composer
I9300: Fixed Memory Leak
I9300: Updated Kernel Sources with latest Samsung JB sources
I9300: Updated WiFi Driver from N7105 Sources
I9300: Updated JB Blobs
I9100/I777: Fixed A2DP Issues
I9100/I777: Added USB Mass Storage Support
I9100/I777: Updated CM Kernel
Added Official Support for Samsung Galaxy Note GT-N7000
Added Official Support for Samsung Galaxy s II GT-I9100G

SuperNexus I9100 BUILD 2 (11-08-12)
Updated Source Code To Android 4.1.1_r4 (JRO03L)
Updated APN List
Added OpenVPN Support
Added SIM Tool Kit (STK)
Added Dock USB Audio Support For Samsung Car / Desk Docks (Option In Device Settings)
Improved Scrolling Cache
Reduced Boot Time
Fixed NAT Detection In SIP Service
Fixed Exchange Issue
Fixed Gallery Thumbnail Generating Issue
Fixed Rotation Issue In Camera
Fixed External SD Card Detection Issue In Some Apps
Fixed Data Activity Overlay When Disabled / Wi-Fi Is In Use

SuperNexus I9100 BUILD1 (02-08-12)
Initial Release