Hi I'm running gentoo and doing uname -a gives the wrong kernel version.

tony@P_P-o ~ $ uname -a
Linux P_P-o 2.6.27-gentoo-r8 #12 SMP PREEMPT Sun Nov 8 19:46:59 PST 2009 i686 Genuine Intel(R) CPU T2060 @ 1.60GHz GenuineIntel GNU/Linux

Running eix gentoo-sources shows that I have a later version than that installed:

tony@P_P-o ~ $ eix gentoo-sources
[U] sys-kernel/gentoo-sources
     Available versions:  
 (2.6.16-r13) 2.6.16-r13!b!s
 (2.6.25-r9) 2.6.25-r9!b!s
 (2.6.26-r4) 2.6.26-r4!b!s
 (2.6.27-r8) 2.6.27-r8!b!s
 (2.6.27-r10) 2.6.27-r10!b!s
 (2.6.28-r5) 2.6.28-r5!b!s
 (2.6.28-r6) 2.6.28-r6!b!s
 (2.6.29-r5) 2.6.29-r5!b!s
 (2.6.29-r6) 2.6.29-r6!b!s
 (2.6.30) ~2.6.30!b!s
 (2.6.30-r3) ~2.6.30-r3!b!s
 (2.6.30-r4) 2.6.30-r4!b!s
 (2.6.30-r5) 2.6.30-r5!b!s
 (2.6.30-r6) 2.6.30-r6!b!s
 (2.6.30-r7) 2.6.30-r7!b!s
 (2.6.30-r8) 2.6.30-r8!b!s
 (2.6.31) ~2.6.31!b!s
 (2.6.31-r1) ~2.6.31-r1!b!s
 (2.6.31-r2) ~2.6.31-r2!b!s
 (2.6.31-r3) ~2.6.31-r3!b!s
 (2.6.31-r4) ~2.6.31-r4!b!s
 {build symlink ultra1}
     Installed versions:  2.6.27-r8(2.6.27-r8)!b!s(07:48:25 PM 06/19/2009)(-build -symlink)
     2.6.28-r5(2.6.28-r5)!b!s(12:35:17 PM 06/08/2009)(-build -symlink)
     2.6.29-r5(2.6.29-r5)!b!s(07:44:33 PM 06/19/2009)(-build -symlink)
     2.6.30-r6(2.6.30-r6)!b!s(11:14:45 PM 10/02/2009)(-build -symlink)
     Homepage:            http://dev.gentoo.org/~dsd/genpatches
     Description:         Full sources including the Gentoo patchset for the 2.6 kernel tree

What gives?