The first thing I do will hopefully be jailbreak it, lol! If the dev teams don't have one soon though I will definitely be taking advantage of the Retina Screen with HD movies, pictures and iBooks for the majority of the day (don't tell my boss) ;)
You actually got quite lucky! Apple usually has a talk with UPS and FedEx before they get delivered.. you might of slipped through the crack and will be getting it early :P Hopefull you do!
iPad, I'm Lovin' IT!