ID4me is an internet service that enables its users to log in to many different internet services with one account. This is also known as "single sign on".
Unlike existing global single sign on solutions like the ones from Google or Facebook, ID4me does not track and analyze the internet surfing habits of its users. ID4me will make sure that the surfing habits stay secret.
Also, ID4me does not belong to an enterprise. It is an open standard that is maintained by a nonprofit organization. Anyone who wants to can participate. This way the users can chose freely between different ID4me providers and can also change the provider anytime.
According to Google there are currently 77 different Android phones on the American market. Now that is only in the US and only phones so tablets aren't factored into the number nor are phones, which are not being currently sold in the US. Still though with "only" 77 phones currently in stores its almost impossible to keep track of them all!