Yes, the links stay valid for around 24 hours (actually probably a little longer depending on the conversion) so it's perfectly valid to email them to yourself (or anyone else for that matter!)

Email notification is possible, but to be honest, I've got more important things to be doing at the moment. Given the general lack of feedback and from looking at the logs, it seems only a few people are using it on an ad-hoc basis. At the moment, I'm forced to conclude it's not worth investing further in. Of course, if it's actually worth something to people, they could make a donation to help cover the investment of my time, bandwidth, disk space etc.

In the mean time, you could bookmark the results page if there's a long queue and check it later - as I said, they stay valid for over 24 hours.

Hope that helps,

Andrew