Did a search on this forum regarding this topic and didn't find much info.
From the Cayman and Rennlist boards, there seems to be a number of people with failing HPFP's in their DFI engines, including the 997's. Reportedly, there is a Porsche TSB out to replace them. If true, I hope they have a quicker fix than BMW had.
Links:
[
forums.rennlist.com]
[
www.planet-9.com]