Google's new Android version 4.0, dubbed Ice Cream Sandwich, is now available. However, for the moment, you'll only see it on new devices. Many of us with older model phones would like to have it retrofitted. Service providers will certainly get around to doing this with some of the more recent models, but older models may never get the dairy confection.
For those of us adventurous enough, "rooting" our phones and loading an Ice Cream Sandwich ourselves is an option. Please see our Blog entry on Rooting for more information before you give it a try.