Interesting, I've a few questions as food for thought. - Is it allowed under GMail's TOS? - Have you considered the security implications of having what is presumably a server somewhere in your name clicking on any link that's sent to it? - You say startup - do you have monetization plans? Putting adverts on the associated website perhaps?
Google TOS is pretty broad. However, one of the main factors here is that export controls could quickly come into play. Since Google is US-based, providing this service for those in embargoed countries could get you shut down quickly. They also have a "don't misuse our services" clause and I'm sure this would count as misuse if found.
How come Google can figure out who and where the interested end-user is when emails are actually send by web apps and clicking is done upon email retrieval (I bet some cron with POP3). Moreover emails from "bad" countries are rather filtered out as spam/scam.
Apart of this thread publicly inviting people it may be also hard to distingush the accout from any busy one. But I guess G may have some pattern matching and rate limits for such sinks.