I get asked a LOT about making a view into a form -- the primary use is to make a bunch of checkboxes with a submit button, but there are many other forms too.

Mark Frederickson has been working for quite some time on a patch to Views to do this, and I think he's been getting pretty close to something. I haven't looked at it much myself because I am completely overwhelmed with Views issues, but I urge people to check this out and help him with his development:

http://drupal.org/node/103171