Just for your information. There is a thread (http://www.darkyrom.com/community/index.php?threads/attention-the-sgs-ii-has-a-custom-rom-kernel-flash-counter.3827/) by one of Darky's moderators every SGS II owner should read.

The unrooting and maintaining the warranty is not so simple with SGS II.

I read about this a while ago but Samsung now actively encourage the custom rom scene so I'm not sure how big a deal it is.

That's why you need a USB Jig to reset it:) Although its no good now if your phone gets bricked.

I think this is referring to a counter on how many time you reset using the jig. I doubt anyone really checks it though.

I haven't read the link, just taking wild stabs in the dark:) So more than likely I'm way off:)

Now if you just shine a light a bit;)