Kiko doesn't speak plain text
Kiko, I know that you're billing yourself as the next generation (read Web 2.0) Ajaxian calendaring solution, but there's simply no reason on earth that your reminder and update emails shouldn't be formatted in plain text. These links can be presently simply in line-blocked format and using right-proper 79 column formatting.
Please note that the actual URLs have been removed from the links. The following is the entirety of their HTML-formatted email:
Someone (hopefully you) signed up with this email address for a calendar on http://www.kiko.com.
If you did not sign up, please ignore this message. Or better yet, use our service anyway by clicking here and changing the password.
If you did sign up, click here to validate your email.
May your day be well planned,
The Kiko Team
Part of being a Web 2.0 company is having the wisdom to know when Web 1.0 technologies are a better fit.
You just lost one more beta user.