Okay, there's more than one thing, but as I transfer non-digitally-transferable data from my Treo to my Pre (ie, inputting every single thing manually), I have to say how much I like the fact that when it goes to sleep, the Pre wakes up exactly where you leave it. With the Treo, it always goes right back to Apps view, and I have to open the app, then find where on screen I was before it went to sleep. A minor thing, but nice!