I'm probably the perfect fit for this service, but I have a few concerns.<p>1) Reliability<p>Your site is sparse and I have no idea who you are. I don't have a lot of confidence at this point that I can use this service reliably for my company.<p>Also, your site says I can try it now at <a href="http://api.maskedmail.net/beta" rel="nofollow">http://api.maskedmail.net/beta</a> which gives a 404. Not good.<p>2) Attention to detail.<p><i>"Thanks for your interest maskedmail we'll let you know when you we are ready for you."</i><p>One too many you's.<p>3) I thought when I signed up I could start to use it and the "We'll let you know" was a let down.<p>4) I assumed I would have to roll me own in a day or two and I probably will. I'm not sure the pain point here is strong enough to make a business. I would open-source it as a rails plugin since it seems to be in ruby. You'll probably get some interest and side work out of it.<p>Even though it would be extremely useful for me, the price point would have to be pretty low and the reliability extremely high for me to not just roll my own.<p>Sorry if I'm being overly negative, but I do hope that helps you.