In the forum there is allready a topic about exporting your sigs and the conclusion is to make a central server. Well most users of the internet these days have acces to there own servers/websites, so maybe there is something to do with this. However this was not my first suggestion on Gmail sigs. I wanted to ask for a possibility to export the sigs and other settings to XML or other type you prefer. So you are able to back-up the sigs (I got around 20 so don't want to update them manually when I switch computers). Just load a file and I got the newest sigs working.

Would this be possible? At least the download and upload functionality, the online sync is a later matter (and after the first one, probably easy to extend).