There seems to be a bit of confusion over the PFI and the way it relates to ID cards. If you examine the Excel document (Annex D: Home Office Projects) you will see that ID cards is listed as the last item. It lays out the objectives it is designed to meet, the part of the Home Office that is dealing with it (The Communities Group under Helen Edwards), and a brief description of the project. Then there is a column labelled "PFI Y/N", and the ID cards line is labelled "No". Unfortunately there appears to be no explanation of what this column actually means.
However within the core PDF document there is a section on the "UKPS Change Programme" which is the modifications to the UKPS to, among other things, "support the Identify Cards Scheme". This project is PFI funded.
It seems that the Government is trying to perform something of a con trick - given the opposition to PFI (and the many over-budget catastrophies) they are trying to claim that the ID cards scheme will not be PFI funded while at the same time ensuring that most of the actual work is done by PFI through other departments before the new ID card department comes into being.
That is unless someone, anyone, can come up with a better explanation of the "PFI Y/N" column.