GMail Drive is still under development. There may still be bugs and features that need correction.
Known bugs:
The "Address" pane does not automatically update on Windows 98.
The context menu for the root item does not appear on Windows 95/98.
Known limitations:
Desktop is sometimes "blocked" while copying files.
Filename length (including paths) is limited to 65 characters.
Google limits the attachment size to 20Mb.