There appears to be an inherent bug that still hasn't been fixed in this recent Kitchen. As reported in the 19588 kitchen:
http://forum.ppcgeeks.com/showpost.p...&postcount=171
Without installing kgphat25's PPST cab (
http://forum.ppcgeeks.com/showpost.p...&postcount=154) GPS seizes to function after approx 20 hours or so. With my recent upgrade from 19558 using kgphat25's cab to the new 20270 (without the kgphat25's cab) I was expecting to see this fixed. I again am having the same problem. And to confirm I do not experience this problem when running the official release ROM.
Can you confirm the sprint carrier files are accurate?
This may explain why many folks are still experiencing GPS fix problems with custom ROM's as they are using buggy carrier files.