The CyanogenMod team has done it again, bringing their CM9 build for AT&T's variant of the Samsung Galaxy SII to nightly status, and releasing the build to the CyanogenMod mirror network just yesterday.

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The build actually released just before news that a seemingly official (and fully TouchWiz-ed) build of ICS had leaked for AT&T's SII, so SII owners have a couple of great options to satisfy their Ice Cream Sandwich cravings. To grab the first (and latest) CM9 nightly for the i777, just follow the link below.

Source: CyanogenMod Mirror Network

Definition: A "nightly" is a bleeding edge release that is built on a daily basis, usually at night after a full day's worth of new code has been committed.

It could oftentimes be unstable and not properly tested, lacking any changelogs, but eventually evolving into alphas, betas, release candidates, and finally stable releases.