Facebook unwrapped a new app this week to celebrate its 10th birthday.

Paper, which turns the social network into a news aggregator, is an alternative to the traditional blue-and-white Facebook mobile app.

It doesn't have every Facebook feature, but its photo-heavy presentation of news from friends and major publications has won wide praise.

"This just in: #Paper is the best Facebook app ever," tweeted the Verge, a tech blog.

That's no small feat for a social media behemoth that typically sends tech reviewers and its 1.2 billion users into a tizzy with each change.

But there are some nits to pick. For starters, there's already a popular art app named Paper, and its creators are steamed about the shared moniker. Also, unlike other news apps — Flipboard is a popular comparison — Facebook's Paper doesn't let users pick which news outlets pop up in categories like Headlines, Score (sports) or Enterprise (business).

Nyt - Nyt, Star Tribune
An iPhone displays Facebook's new app, Paper.

Finally, one of its most appealing features may not last. Paper doesn't have ads — yet. □