Live templates work in Visual Basic (not all macros work; no bundled templates)
Type name completion (Control+Alt+Space) works in Visual Basic
Smart code completion (Control+Shift+Space) works in Visual Basic
TO-DO Explorer (try ReSharper -> Windows -> To-do Explorer)
Solution-wide error analysis (enable it by checking the ReSharper -> Options -> Highlighting -> Analyze whole solution checkbox)
Automatic member reordering (configured at ReSharper -> Options -> Member Order; configuration UI is plain XML for now as the options are not finalized yet)
More context actions and quickfixes
Suggestions
Make field read-only
Make parameter type more specific
XAML is supported (to the extent of recognizing symbols declared in XAML files and resolving some references; more will come in future builds)