TwitterMail allows you to send posts via email to Twitter.com and notifies you via email if there are personal replies.

Why is this so spectacular? Because it changes Twitter from a 'pull' platform into a 'push' platform. No more reloading and browsing back looking for replies. You simply check your email and see if there were any reactions. Then you can reply via email or browse to Twitter.com to continue the conversation.

And there are a lot more features:

- Post to Twitter -
Send an e-mail to your secret TwitterMail address. The body of the message will be published in your Twitter Profile. For a normal message, you should always leave the subject-line empty.

- Get new replies in your mailbox -
If a friend send you a post on twitter (by using @yourusername) we will send it to your emailaddress. You can enable/disable this in your settings.

- Get the Timeline -
Send a message with 'Friends' as the subject and you will recieve one message with the last 20 posts from all of your friends.

- Send a book -
At Twitter.com you only have 140 characters to tell your story. But if you use TwitterMail we will keep the full message here and post the first 140 characters to Twitter with a 'Read More' link at the end.

- Future Tweets -
Schedule your posts: Add a time to your subject-line when you want you post to be published. Example: "21:00" will publish your post at 21:00 (9 PM) GMT+1. Make your friends believe you are Twittering day and night.

With the constant updating, tweets and twittering going on, we all thought we were in the know and keeping our friends right up to date, to the second, right? Chris24.ca , the developer of Tweetahead doesn't think so, he can help you to do one better. He (and Tweetahead) can help you to Tweet into the future! Yup, you heard right, you can set up tweets now and deliver them into the future.   The possibilities are endless.  Now you can even automate yourself on Twitter!

The Tweet Ahead app is available as a Mac OS X dashboard Widget and can be downloaded here .

There is also a Tweet Ahead web page but we are not exactly sure what it does.  There is no info and it just asks you for a user ID and password.  We weren't comfortable entering our Twitter ID in here when we don't even know what the site is for or what it does.  

Anyway, the concept is cool.  If anyone has more details, let us all know in the comments.