Hello,
There are currently only three packages in the Debian archive (sid)
that still require gnutl5:
gok (GNOME Onscreen Keyboard)
nautilus-gtkhtml
gtklp
The former two even link against *both* gnutl5 and gnutl7. gnutls7 is
basically API compatible and the programs should work without changes
a smple rebuild with correct build-dependency would probably be
enough. Could you pretty pretty please do it?
cu andreas