Addendum: I made some more spare time (and am feeling really bad about it) to try the php idea. I needed to crosscompile libz and libxml2 for this point, but it is obviously running ^^
I will work on getting sqlite support on the KT. I believe that in connection with the Kobo_Reader.sqlite database that manages the Kobo's UI Functions this might open up some neet possibilities (ie. reclassifying stuff as newspapers without a sync/computer).
If anyone but me is interested in this stuff, I can of course make the crosscompiled binaries/libs for zlib, libxml2, php and shttpd available.