Even though implementation of the new Mass texts is not set to happen until November, 2010, the USCCB Committee on Divine Worship has posted two versions of a Study Edition of the new text which received recognitio in June, 2008 - a regular one and one with annotations from the scriptural sources - along with new versions of the Eucharistic Prayer and some formational materials (scroll down the page to find them) This can all be found at http://www.usccb.org/liturgy/missalformation/index.shtml. Cardinal Arinze's letter states that the texts are posted so that preparations can begin for implementation - new musical settings, catechetical materials, etc.
Our office (Religious Education) has received numerous requests from catechetical leaders for materials to form people. There already are some good things on the USCCB page, but more local ones will certainly be coming.
What might be good to make continuously available to people in parishes now is the 10 Questions on the Revised Translation of the Ordo Missae from the Missale Romanum, editio typica tertia - also available in Spanish. I'd recommend putting it in the bulletin once, if a parish has not already done so - and than having it in the back of church.
The two formation documents Changes in the Parts of the Priest in the Revised Order of the Mass and Changes in the Parts of the People in the Revised Order of the Mass would be good to give to liturgy committees to study beginning in the fall of 2009.