We finally managed to finish get our Wiki migrated from the old MediaWiki, to it's new home here in XenCarta, integrated with the forums, and opened it up for general edit last night.
So yes, we positively encourage adding tutorials in the Wiki.
Now that we have the integrated Wiki, we will be starting to create an "official" 3.1 series of tutorials. I just need to confer with Rob, and come up with a structure in the Wiki which allows for easily finding both 'official' and contributed videos / tutorials.
-- hugh