HTC has dropped the kernel source files for the HTC First, an AT&T exclusive we reviewed back in May. These source materials will allow the First's [few] developers to provide better support for the device, and make custom kernels a possibility. Of course, this all depends on the development community, and I'm not sure just how much of a following the First has in that regard.

Two kernel source versions are available, for builds 1.08.502.1 and 1.05.502.1. Both can be found on the HTCDev site at the links below.

HTCDev [1.08 Source, 1.05 Source]