liberate the Skype and the One Drive
Everybody know that hangout is the worst ever "messenger". if you can liberate the Skype for free calling to the phone and integrate with your email, then will you have a chance to survive the next year. The people look a service and a free service. your business is on the ads and on the companies, not on the average user. The average user, will give you publicity and desire to consume,(this is the best marketing that you could ever get in your life). If you can grasp the idea then will you have a better service and slowly will you penetrate on the mobiles again.