I'd really like to have a cancel button on the Sync screen. Sometimes I'll hit sync and see it copying files I don't want it to copy (because I dragged them on accident for example) but there is no way for me to cancel, so right now I just unplug the thing and then I have to wait for it to realize that it's no longer plugged in. I'm sure unplugging it while it's syncing really isn't good for it.