Nokia promised it was about to resurrect its brand on new products imminently, and it looks like we'll see the first device tomorrow. In a cryptic tweet from Nokia's official Twitter account, the company hints that it's "up to something" to coincide with Finland's Slush conference tomorrow. An image accompanying the tweet is simply a mysterious black box furnished with a Nokia logo. All will be revealed tomorrow morning when Nokia’s product business head, Sebastian Nystrom, presents a "what’s next for Nokia" session at Slush.