I could not find an entry for HTC Desire in the supported Anrdoid phones so I'm just wondering if all 2.2 devices are supported or if the list is specific to phone and installed software versions etc?
Update: Android is listed generically under supported manufacturer and model but I found a stumbling block regardless of my initial query above..
I am on the basic package ..
On re reading (https://one.ubuntu.com/basic/) Everyone gets the basics… for free! The option to Sync contacts with a mobile phone is for a fee.