I don't think Piper is an advocate of the modern tongues movement. The last time I checked his site a few years ago he described his position as "open but cautious." I believe he is a friendly with Wayne Grudem but don't know that he agrees with him on prophecy, etc. But then again there is a post on the DG blog that includes a tribute by Sam Storms to the late Vineyard leader John Wimber.

__________________
Chris
Member at Grace Community Baptist Church
Mandeville, LA

"Faith alone saves, but it is a faith that works." - S. Lewis Johnson