My Co-worker and I have both passed this exam and he posted a blog about it:
Any particular Exam simulator or Practice test materials link?
I didn't use any, but I used the Exam ref for the 70-486 exam which has sample questions/practice tests included to pass that exam. Unfortunately, it hasn't been released yet for 70-480, but is scheduled to be released Jan 31, 2014, if you can wait: www.amazon.com/.../ref=pd_bxgy_b_text_z
Thank you and GRATZ!