Being a Gentoo and openrc user I don't know enough about the Debian/Maemo sysvinit boot sequence to answer this. If keeping historical syslog output is important to you, I would use cron to schedule compressed backups to MyDocs to minimise rootfs space usage.
0 14 1* * mv /var/log/syslog(.txt? I don't remember) /home/user/Mydocs/syslogsarchive