The 2008 edition of the Moravian Daily Texts, published by Mount Carmel Ministries, is now for sale online. This is the devotional guide that I've used for years and which I teach my spiritual formation students to use.
I usually buy a couple of copies for myself -- one for home and one for the office.
The Moravian Church which has been selecting the texts and publishing them continuously since 1731, also publishes several versions. However, I use the Mount Carmel Ministries version -- not only because I like the layout but also because of the additional resources. They've developed the T.R.I.P. method of prayer, which I teach to my students. And they've included Martin Luther's Small Catechism in the back of the pocket-sized book.
Here is a bit of the history of the Daily Text (or Loosung in German).
They cost $8.95 plus shipping. But if you order 2-9 copies they are $6.95 each. There are additional price breaks when you order more.