[switz]

UX isn't about who did what first. It's about doing what makes sense for the user, then reapplying it in every scenario that works. Pull to refresh on the iPhone was utter genius and everyone adopted it. No one is saying, "Well Tweetie did that first!"

Also, it seems like a "no brainer" now, but during the development it's easy for these no brainer things to either be ignored or written off as a waste of valuable engineering time.

[shanselman]

Well said. I wasn't trying to say DropBox is the only or the first. They had the will and attention to detail that so so many sites don't.

[dazbradbury]

Well, apart from Apple who often claim they did it first...