The only problem I have with what KH said is that the Bible DOES NOT teach receiving the Holy Ghost w/ speaking in tongues as something that is mandated for salvation.
The Holy Ghost is a promise, not a command.
If the Pentecostals and Charismatics could some how bridge this gap in scriptural understanding, then it would be a very good thing.
One thing is for sure, the Charismatics do not need to become legalistic to experience revival.
Neither do they have to become Oneness to experience a genuine revival from GOD ALMIGHTY!
(It would be nice if they did though

)