Check out this website I found at gallery.technet.microsoft.com
I have to say when it comes to responding a workflow task while being mobile I think of advising my clients to buy Nintex Workflow for their Sharepoint farm as the design and maintenance of those workflows is much, much cost effective in the long term. But this post got me thinking, specially when you have an IT environment locked down where you cannot add third party tools.
I have not implemented it myself yet, but will do in a few weeks.
http://domino2sharepoint.blogspot.com![]()