Right now, Ice Cream Sandwich is installed on around 1% of Android device, which is comprised almost exclusively of those with Samsung's Galaxy Nexus phone, the first device to launch with the new OS out of the box.
Ice Cream Sandwich is one of the biggest updates to Android yet, and includes such features as scanning your face to unlock the phone, a much more robust speech-to-text software program, and an entire platform of data sharing that focuses on Near Field Communication (NFC).
NFC so far has been mostly focused on using your phone as a payment device in retail stores, but with Ice Cream Sandwich's Android Beam, it can also allow users to easily share contact information, Youtube videos, or website addresses simply by waving two phones next to each other.
Several other manufacturers have pledged support for the new update, and a bunch of phones currently running an older version of Android will be eligible to upgrade to Ice Cream Sandwich beginning in the coming months.
However, those that have tried to upgrade have met a bevy of roadblocks. The Nexus S upgrade process had to be halted after it caused some phones to crash and become inoperable.
The same thing happened when Asus began to roll out Ice Cream Sandwich updates to its Transformer Prime tablet. As a result, manufacturers are still optimistic about the number of devices they can upgrade but they have become dodgy about when users can expect them.