Thanks Avenger for the heads up
It looks as though MSN Hotmail are planning a big upgrade to the functionality and appearance of MSN Hotmail. The icons due to be replaced on Hotmail are identical to those used in Office 2003 and Exchange 2003 Outlook Web Access.
The new features appear to be junk mail related which will ease the pain on those who use Hotmail frequently. The upgrade is due to co-incide with the MSN 9 release. Lets hope it all goes smoothly :)