A while back Nick Tong started a project called cfCommerce which saw a lot of activity at the start. Recently though there has been none, or little activity which has prompted some question to the mailing list about the validity of the project.
cfCommerce is active but some of the main contributors have been busy on other projects and with the Xmas break, well that didn't help. A lot of work though has been started on the theory side (also know as boring side). So even though there is no code us main contributors have an idea of direction of where we are going (sort of) :o)
If you want to know what has been discussed check out the pages at http://groups.google.co.uk/group/cfcommerce/web to see feature list, references etc.
In the mean time read through the list and subscribe to the feeds and contribute anything you can.