Tray Helper is a small application with many features (f/e: email checker, anti-spam, popup-killer, event reminder and more).

There was a new version released recently (2.4) with following changes:

• Some improvements to install and uninstall utility (more XP compatible).
  
• Removed small bug in forwarding e-mails to mobile device.
  
• Improved a bit build-in email reader.
  
• You can set Tray Helper to show time in 12 hours (PM/AM) format.
  
• Current time & date could be shown on tool tip of tray icon.
  
• Email filters now are more powerful, there is also support for multiple mobile devices.
  
• Tray Helper can take advantage of Microsoft Agent Characters -
  it means that those live, speaking characters can notify you about new mail, reminders ect.
  

More info and download at: http://trayhelper.republika.pl/indexeng.html