Confirmed: kernel renamed to /boot/zImage-2.6.28.10pali1 /etc/multiboot.d/01-Maemo-kernel-power46.item contents:
Someone (maybe even pali, but I'm not sure and don't want to put words into his mouth) wrote that moving to kernel 2.6.37 will not be possible in Maemo 5, as some closed-source binaries rely on kernel interfaces present in 2.6.28 and deprecated or not available in 2.6.37
Also, pali! I want to try few things by myself, so: how to compile your kernel please step-by-step instruction (can be not noob-friendly, just steps)? ^ ^ Would it work when I: 1. download kernel-power 46 sources, 2. go to http://atrey.karlin.mff.cuni.cz/~pali/ , get kernel-power_2.6.28-pali1_source.diff.tar.gz, 3. apply diff, 4. compile kernel 5. compile modules? :P