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User lalexi over at xda-developers just posted a link to HTC's official release of the Desire's kernel source code. This is very good news for the development community because, as it stands, developers have to simply patch bugs that occur when trying to overclock the processor and getting things to work, sometimes incompletely, trial-and-error style. They are all fixed in this source code and now all that's left is for the developers to focus on adding functionality rather than fixing broken functionality.
You can download the source from this link.
Source: xda-developers