After Periscope, it seems that Flipboard is next in Twitter's crosshairs. While this idea of this acquisition plans might raise eyebrows just for the perplexity of the concept, that seems to be exactly what insider sources are saying. According to them, Twitter is engaged in talks to buy all of Flipboard. Whatever Twitter's purpose, it better be a strong one because it might cost it quite a lot. An all-stock acquisition puts Flipboard's value at $1 billion, not exactly a cheap number for a whimsical purchase.