rooting samsung galaxy pop

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http://androidforums.com – Hi developers, I own samsung galaxy pop(S5570). I have rooted my mobile with gingerbread which i followed from xda-developers. Now, am looking for latest version update. i found cyanogenmod and ICS for pop, but they are not stable(camera not working and lots of bugs). could u tell me a stable & advanced update and pls post the link. WHETHER WE CAN INSTALL UBUNTU IN GALAXY POP? thanks in advance (General)