I would absolutely use it. I actually considered suggesting this a couple of months ago in this thread: http://www.toodledo.com/forums/2/300/0/what-new-connections-do-you-want-to-see.html
But decided that it probably wouldn't be a popular option. It would be an interesting juxtaposition of productivity in the midst of time-wasting.
I am surprised Toodledo does not even have a Facebook page, so we can be fans. There is a fan group, but no official Toodledo page.
Correction: There is a page: Toodledo on Facebook
I really like the way you have set up the forum. It has always been hard for me to follow threads in a lot of other programs sites. But this is simple enough,does not have a lot of clutter, and it is easy to post and follow up.
Oh by the way I was fan #32 on the Facebook page, I think it will be a great way to promote Toodledo
If Toodledo had an official Facebook page, we could all be friends and do Productivity Waves. I do mean Google Waves and not a bunch of us doing the Wave as you would in a sporting event. Not sure that would be productive. :-)