I have Kernel-Flasher-Maemo 2.6.28-Maemo19 installed, yet my uname -a reads:

Linux Nokia-N900-42-11 2.6.28.10maemo-omap1 #1 PREEMPT Tue Apr 6 13:21:33 EEST 2010 armv7l unknown

I'm not too bothered as overclocking is working fine and it should be easy enough to update my phone one way or another. It's just odd.