After a few days of bad press and dealing with the public outcry, HTC has changed their stance on the Gingerbread update. In order to get around the HTC Desire's 512 MB ROM limitations, HTC will be stripping out a few applications from the new Gingerbread build.
While some will say this is a second rate solution, it is the only way you can get a real carrier approved build of GingerBread on your Telstra Desire, Stripping Sense from the Desire will make a lot of users feel uncomfortable, the pure Android experience is very different, but let's hope HTC can in the future, apply Sense as an application that can be installed to SD, so that older devices can still maintain that familiar interface.
source: HTC Source