Android 4.0 added
Following the recent release of an Android 4.0 emulator, I have added the latest Android Browser version to the "near future" row.
There's a significant number of new features since 2.3, including long-awaited support for SVG.
A number of other features are also new since Android 3.
Note that this information is based only on the emulator and some differences may appear once real devices are tested.