Connectotel have got a Free SMS 2 Email service, which lets you send an SMS to a special number and they convert it to an email, which means you can send email from your phone, even if its the most basic ancient mobile phone, as practically all mobile phones can send SMS text messages :)
The good thing is the number you need to send to for both services is the same, so you just need to alter the format of your message if you want to send to a skype user or an email user, also at present you dont need to register for their services to be able to use them, which is cool :)
[info found via textually.org/]