Arthur Ive heard that story about people speaking in tongues in SDA circles beleive it or not. That was a while back though.
Since that time SDAs have had joint meatings with tongue speakers and many SDAs around the world go to penticostal meatings for the experiance. I remember in Tumut NSW when the penticostals opened their new church they invited the SDA church members to come to the opening. I went with many other SDA church members and some of the more conservative SDAs thought the devil would jump out and get them when a penticostal started up speaking in tongues. I could see it on there faces. The bloke started speaking in tongues was waiving his arms in the air and swinging backward on his chair as he spoke.