HP Jornada users who have patiently waited for the release of the EUU# for their 560 series device have had their patience rewarded. HP has posted EUU# for the Jornada 560 on their website. The only thing worth noting about the HP update is that it requires the latest firmware update by HP to be installed prior to performing the update.
There have been many stories of users successfully updating their devices using EUU$ from other manufacturers, but we must warn against this because it is possible that doing so will render your Pocket PC unusable. Please use only those End User Updates specifically for your device.