I was doing some searching around the forums and found a thread from Drellisdee:
http://forum.ppcgeeks.com/showthread.php?t=63114
Taking a risk and downloading SYS21202 and Apache core into the PPCKitchen within 30 minutes I had WM6.5 running
I did the bare minimum selections and I am using Bootloader 2.02 with Sprint in US
What works
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Phone
Contacts
Phone Lock
Exchange Email
Finger scrolling
IE8 on Mobile
SMS/Texting
More ...
Unknown if works
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SD Card (didn't select it on the build)
Bluetooth
Confirm bad
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Flash video content displays but rarely plays (not enough memory)
App Store
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Enjoy