Apple (AAPL) has iMessage, BlackBerry (BBRY) has BlackBerry Messenger and Google (GOOG) will reportedly soon have Babble. According to a report from Geek, Google is interested in unifying its messaging platforms into a single service. The company currently has a number of messaging services across different platforms such as Google Talk, Hangout, Google Voice, Messenger and more. Google is now said to be building Babble from the ground up to bring all of its services across Android, Chrome OS, Windows and Mac together. No timeframe has been revealed, but the company is expected to announce the service at its annual Google I/O conference in May.