Found an Alpha Jelly Bean ROM for the Droid Bionic.. Tried it and so far it looks good, but don't know how stable it is.. I think it should be good as it's from CyanogenMod!! It's a shame that Motorola hasn't still released an ICS update for the Bionic while coders outside the company are coming up with Jelly Bean updates!!
Get the Jelly Bean update for DROID Bionic (CyanogenMod 10 - Alpha Build)
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