Google's latest Android release is now available. You can find a good summary on the Android website.
There are significant improvements/additions to:
- User Interface
- Voice Input
- Control Over Network Data
- Social Networking Interfaces
- Camera Capabilities
- Gallery and Photo Editing
- Web Browsing
- Wi-Fi Connection
- Unified Framework for Phones and Tablets
Look for phone manufacturers and service providers to start releasing phones running Ice Cream Sandwich.