HP just recently updated their site to state that it looks like the HP 47xx upgrade has moved out to Spring 2006 but the hx 2000 upgrade should be here shortly.....

It's a real shame as the 47xx will be an amazing device with Windows Mobile 5l0 thanks to that great VGA screen!

More details at:

http://h10010.www1.hp.com/wwpc/pscmisc/vac/us/en/sm/pocketpc/MS5.0_coming_soon.html