Sure,

Standard FC 7 (I will soon upgrade it to FC 8)
modified version of iwconfig to allow wpa-psk(2) to work
Xine-lib cvs (v1.1.6)
vdr-sxfe or vdr-fbfe as needed

I'm using Ubuntu, with wired ethernet. connection
So both framebuffer and xorg with xineliboutput are working? Did you compile them yourself, or there are binaries qavailable for Fedora?
What about CPU usage. Is the PS3 able to display everything smoothly (with and without the OSD)?

The PS3 is connected to a SD TV set.

As you can see it is not something complicated. Apparently when trying the
same thing with HD (720p/1080p) television gives better result. (talking
about picture quality) To enhance the picture quality on a SD TV you can
deinterlace in sw before displaying the picture. The drawback is that an
interlaced source is de-interlaced then interlaced again to coop with PAL
standard.

My PS3 is connected to a 720p display, so this should not be a problem... if it's not a problem for CPU usage...

I did put this project on hold until better fb or xv support is popping up ;-)
May be you will also be interested to have a look here:
http://forums.ps2dev.org/viewtopic.php?t=8364&postdays=0&postorder=asc&start=0

thanks for all the informations!!

Ciao,
Graziano