The latest buzz from Silicon Valley has it that the internet giant Yahoo! is in talks with Foursquare for a possible acquisition. The deal is pegged at around $900 million(give or take) by industry experts. The New York based startup is famous for its location-based social check in apps and is currently valued just over $600 million. In last funding round, Microsoft gave Foursquare nearly $162 million. Sources also have it that Foursquare may have other suitors as well, looking at its popularity. Another source has it that the deal is done and the details are being ironed out. Foursquare split its app into two with the other app being called as Swarm. The ratings may be dying but Foursquare still has a very loyal fan base. Yahoo on the other hand, is full of cash from its stake in Alibaba's IPO but the recent change in leaderships and with its reins under CEO Marissa Mayer, the company has faced severe criticism for its incremental product focus despite the hoard of acquisitions. We have contacted both Yahoo and Foursquare for a comment and will update the story once we receive a response.