Instant @mention e-mail alerts
If someone mentions you on Twitter, you'll get mail a few seconds later.

Do all your Twittering by mail
Just send an e-mail to tweet, follow, DM, retweet, and unfollow (all from the same mail).

Summary e-mails
Daily e-mails with details of your new & lost followers, new lists you've been added to, friends' timelines, search terms, DMs, and more.

Google+ integration and lots more
With Twepe, you can automatically tweet all of your Google+ status updates. Learn how here. Plus, you can weed out Twitter spammers, do multiple Twitter actions in a single e-mail, and more.