[Nativedude]

The problem is definitely the zImage, which is the kernel of the linux OS
Somewhere along the lines of development for the RAPH800 they lost support for the RAPH500
Praxidike was able to pinpoint and correct this for one of the older kernels which gave us phone but no data, just before he disappeared he said he had one with working data
But since he's gone and none of the RAPH800 developers have a 500 no one knows where the code needs to be changed, thus no more 500 development

So we are at a stand still till we get someone familiar enough with the Linux kernel to make the correct changes, then we can implement all the fixes that the 800 has and be on par with them

BTW: I have a Nexus One and Love it, so anyone on the fence about getting any of HTC's Android phones, don't be, GO Android