Last week I passed the Exam 70-573: TS: Microsoft SharePoint 2010, Application Development exam. People asked me what I used to prepare for the exam. Because the official learning material is pretty scarce at the moment, I used e.g. a training, read bogs, seen web casts and used my SharePoint 2007 knowledge.
The following list contains (a part of) the material I used:
Good luck with studying!