Added info about possible support by the snapscan backend.

unsupported/epson-perfection-1270.html

@@ -35,7 +35,16 @@
     </p>
     <h2>Comments</h2>
     <p>
-      Not supported by the epson backend. Not a "normal" Epson scanner.
+      Not supported by the epson backend. Not a "normal" Epson scanner. Not
+      supported by the Plustek backend.
+    </p>
+    <p>
+      Olaf Meeuwissen reports on sane-devel: "I've checked around a little bit
+      and found some tidbits of information that seems to indicate that the
+      GT-7400U is the little sister of the GT-8400U.  There is a reasonable
+      chance that this scanner works with the snapscan backend.  You will
+      probably have to muck around a bit to get it to load the right firmware
+      file and copy that file from the Windoze software."
     </p>
     <h2>Output of /proc/bus/usb/devices or sane-find-scanner -v -v</h2>
     <pre>