Just stumbled on this today... pretty surprised there's been no mention of it (i searched)...
 
FYI - This is the VGA version for the Diamond and Touch Pro...
 
New Version 4.5 is now available for immediate download and upgrade!
 
Monday, December 1st 2008
What`s new on version 4.5 ?
- Improved user interface
 
- Faster maps
 
- Keypad short codes
 
- Wider support for handsets
 
- New support for iDEN (Nextel) handset
 
- Improved support for touch screen
 
- Change screen between `Portrait` and `Landscape` modes
 
- Full Earth view - Rotating Globe
 
- New signed versions for Blackberry handsets
 
- Wider mapping coverage - New countries added
 
- Improved Local Search mechanism
 
- Improved Windows Mobile versions
 
- Improved communication
 
- Bug fixes from version 4.2
 
You're welcome...