So I bought this mega pack of Kit Kats and it arrived via courier yesterday morning. When I realized that 1/3 of the box is now gone I took a photo and hit upload to Twitter (from inside Photos).
I gave it a witty caption and sent it on it's merry way. Later when I check my Twitter I see that Mango uploaded the image to Skydrive then shared my Skydrive image with twitter. Sneaky!
Loaded the official app (ugh!) and uploaded it from inside there and it worked properly. So beware!