Google Voice updated for Android
The update brings a slightly different UI style to Honeycomb and Ice Cream Sandwich devices, so now the menus and layout fit in better with the new look of Android. The app now also includes dedicated user feedback menus on each screen which should help Google make the app better with more targeted feedback. But, the biggest, or at least most useful, update in this version of Voice is asynchronous SMS, which means that if you are offline, SMS messages will be put in a queue to be sent when you get online again.
If you need Google Voice, it's available for free in the Android Market, though only US users can sign up for the product.