Ok, i just come in this thread.

I tested php5 + nginx + sqlite in native Maemo environment, but that wasn' sufficient for me.

I think php5-cgi package with mysql support would be very nice...
But i really needed a lamp server running on my N810, as a webdev.

As an alternative, i installed :
- easy debian turbo-charged edition
- in the chroot environment, i installed package "phpmyadmin"
#apt-get install phpmyadmin
which installed all needed stuff : apache2+php5+mysql.

So i run the servers after chrooting each time i restart (twice a month) my tablet :
- /etc/init.d/apache2 start
- /etc/init.d/mysql start

And, when i'm back in microb, browing http://127.0.0.1/phpmyadmin/ this works !!!
could install typo3 for example.

I know it's quite "huge" but i don't have big slowness.
Having a such environment (php5 mysql support) would be nice, even with lighttpd or nginx, but i couldn't find how to cross-compile php5 on Maemo OS2008...