.NET Reflector Support: Can I view disassembled IL instead of decompiled source code?

Absolutely. Just select IL in the language dropdown on the main toolbar. Once you’ve done this, if you right-click on a member, or type, in the browser and click Disassemble on the context menu, .NET Reflector will show you the IL for the selected item, including the IL offset for each instruction, just like ildasm.

At the moment there is no way to view the raw byte code for the member or type, but this is on the list of possible future enhancements.