I love the pricing scheme. Most web based services start at several dollars a month (probably because of card processing fees) or an expensive yearly signup. For a simple task app like this, I would not pay several dollars a month and a yearly lump sum would be 'risky'.

I know the service provider is probably paying a huge % of card processing fees though. I wonder if there is a service that would handle 'subscription micro-payments' for cheap services like this (eg. combine all your micro-payments onto one bill to save fees)?