This may not come as a surprise. But it goes back a long way.

"Use TwimeMachine to easily browse through your old tweets (max 3200). Read what you said ages ago."

Depending how often you tweet. But it does show up Twitter's lack of a good archive.

It's not that brief, but Pocket-Lint argues that if Samsung was copying anyone, it's Palm. And so was Apple with the icon arrangement.