Galaxy S II Skyrocket users rejoice, the long-awaited Jelly Bean update for your smartphone has arrived. As it turns out Samsung has not forgotten its loyal S II users on AT&T’s network, and has just released the Android 4.1.2 update.

The phone is an AT&T exclusive and was released back in November 2011 running on Android 2.3 Gingerbread. Later, it got the Android 4.0.4 Ice Cream Sandwich treatment and now Jelly Bean sweetness awaits you either over-the-air or via Samsung Kies.

As usual, the Jelly Bean update brings Project Butter optimizations and Google Now, along with other under-the-hood improvements.

Updates are coming and going in the Android world. Here’s a round-up or recent update news for some of the most popular Samsung Galaxy devices with a Jelly Bean focus.

Verizon Samsung Galaxy Nexus SOON Song- According to Verizon Twitter account a rep tweeted that the Nexus will be update to Android 4.2.2 but did not state when. The all too familiar release date was “coming soon.” An XDA forum member has reported receiving an update for his Nexus. If the Nexus has been rooted, the update will work but the owner be rooted any more. Verizon tests updates thoroughly and usually sends them out starting in small lots first.

Android 4.1 and 4.2 each up 50 percent over last month’s tallies

The latest numbers are in, and things are continuing to move in the right direction: The “Jelly Bean” version of Android — that’s Android 4.1 and 4.2 — is now on 10.2 percent of all active devices, as of the two weeks ending Jan. 3. For the two weeks ending Dec. 3, 2012, Jelly Bean was on 6.7 percent of all active devices. Ice Cream Sandwich numbers were up slightly as well, from 27.5 percent to 29.1 percent. Devices on Android 2.3 Gingerbread are trending down, from 50.8 percent last month to 47.6 percent today.

Jelly Bean, the “buttery smooth” upgrade to the still-rather-elusive Ice Cream Sandwich has been confirmed for HTC’s One X, One S and One XL, though the HTC has offered no exact dates.

HTC has fallen well behind fellow Android supporter Samsung, so it can only help the smartphone maker to be the first to announce that several of its devices will soon receive the upgrade to Google’s Android 4.1, known as Jelly Bean.

If you own an HTC HD2, you may be pleased to find out that the device has been hacked to run Android 4.1 (Jelly Bean). Now you can get Google’s latest and greatest once again instead of Windows Mobile 6.5.

Ever since it launched in November 2009, the HTC HD2, which runs Windows Mobile 6.5 out of the box, has been hacked over and over again. We’ve seen it running Windows Phone 7, Android 2.2 (Froyo), Android 2.3 (Gingerbread), Android 4.0 (Ice Cream Sandwich), MeeGo, and even Ubuntu. Last week, Google open-sourced Android (Jelly Bean) 4.1 for third-party modification. As such, nobody should be surprised to HTC HD2 owners can now install Jelly Bean on the ancient phone that just won’t die.

Android 4.1, code-named Jelly Bean, is first OS from Google to correctly randomize memory, making it tougher for attackers to get a foothold.

Expect some notable security improvements in Android 4.1, code-named Jelly Bean. In particular, it will be the first version of Android to properly implement address space layout randomization (ASLR), thus foiling would-be kernel attackers.

Source code for Android 4.1 (Jelly Bean) has been released. We’re sure many of you will be downloading the new Android 4.1.1_r1 files simply to poke around, but CyanogenMod and countless other Android development groups around the globe will be spending countless hours pouring over every last line of code to see what changes will need to be made to integrate Jelly Bean into their existing code base.