I know that leaving is hard for you. I know you really wish that you could stay, and that things had worked out differently enough that you felt you could stay.
You know you are going to be missed, and you have been showing that you'll be missing many things too.
While I really hate to see you leaving, and wish that things had been done so you would be staying, I'm sure you'll do well on your new adventures and I hope that you are welcomed to your new job in ways that let you be comfortable and work your way into things without feeling as if you were tossed to the animals and thrown into the fires without adequate protection.
You should know you aren't going to be losing your friends, and you'll be welcome to call just about anytime (though you know how the current workplace is and how many fires we normally are dealing with too). Hopefully we'll have many chances to get together as friends, even if we aren't co-workers, and hopefully we'll keep in touch as the future unwinds for us.
Either way, you know you'll be missed terribly, and you definitely know or should know you've done great things even if it seems that some haven't noticed, or at least haven't acknowledged in ways that made you feel more like they have noticed.
I wish we were going to have more time for goodbyes and farewells, and that we had more time to let some people change their minds (even though it seems that isn't destined to happen). Hopefully the next few work days will go well and you'll have some time for your friends and other co-workers to stop by and say thank you and goodbye.