I like the idea and might give it a try. I know it is unlimited in beta but the 10 limit/mo for the future free is offputting. If it was 100-250 and I knew what happened when I reach the limit, I might not think twice.
I have a non-tech product and am struggling for months on end trying to get ecommerce stuff working, so relative to that contact forms are nothing. For now, I need to mooch off free tools as much as I can.. =)