Merry Christmas!!! Had too much turkey for lunch...

In summary, as a non-EEU citizen I married a EU citizen and obtained
the usual marriage visa. After 5 years, finally came around to apply
for permanent residency status via EEA4 application form back in Aug
2006. Wife is happy with her residence card which we obtained after
marriage and did not submit her application for ILR. I finally got my
passport back from the Home Office a few days before Christmas, with a
permanent residence sticker in my passport (woo-hoo!!).
Now the real question is, for the type of document I've been given, it
is a 10-year Permanent Residence Card, issued in November 2006, with no
restriction on my activities in UK (e.g. working, etc.). However, what
concerns me is that there is a renewal date in 10 years' time for the
PR card (Nov 2016)
My question is whether this has the same status as Indefinite Leave to
Remain for application to be naturalised as a British? I intend to
apply as a naturalised British come next year and would have met all
the conditions in 12 months' time (5 years' legal residency, less than
300 or so days out of the country) except for this minor
clarification...
Any help / advice would be greatly appreciated! I have read the
guidance notes and info on the IND website but just couldn't find out
about this minor clarification...
Tangorama