A lot of users will already have google/gmail accounts for monitoring other skins and plugins.
Lets see if this is going to work.
For a start I will post the official releases and SVN's for a while to see if it helps.
If requested, we can even give the skin/plugin authors access to notify via the whole group.
You could create a custom rss-feed via yahoo-pipes for yourself and use the email-alert as output option. You can use rss and also scrape html where rss isn't available and create your very own mashup of information there so the output really gives you everything YOU need in the format YOU want. I don't think you are going to reach this amount of personalization via mailing list.