Hi Jeremy,

The status icons in VisualStudio are the same for 'checked in' and 'checked
out shared by someone else'
Basically, other developper can checkout the file in any of these
situations, so it made sense to use the same icon.
If needed, the tooltip on that glyps gives additional information ("checked
in" or "checked out by someone else or in another place").

Also note that VS/VSS caches the status for the files.
The second developper might need to do an explicit
File/SourceControl/Refresh on that file to have its status updated.