OMG! Three little letters that get the the tightest of whiteys tied up in knots. OMG! This phrase's use in popular lexicon, can be used as an exclamation for a number of a number of emotions: such as excitement, happiness, relief, sorrow, guilt, anger, etc. Of course, those who are prone to more sacrilegious exclamations sometimes add the letter "F" to create "OMFG," which in modern parlance means "O My F'ing God."
I was raised a Southern Baptist, and many a time I got my mouth washed with soap for daring to take His name in "vain." In the past couple years, I've taken notice of the many prudes who are more than willing to shove God down the throats of others; but can't stomach the use of God's name in phrases such as OMG! I am one to think that the Supreme Deity is more preoccupied with other things, such as ensuring that the world keeps spinning, the rivers keep flowing, and that humanity doesn't wipe itself (along with everything else) out, etc.; than some snot nosed teenage punk uttering or writing the phrase OMG.
Is the use of OMG taking the "Lord's Name" in vain, or insulting to the Great I Am? I can see it as being so if the letter F (and the word it is representative of) is added to the phrase; but I fail to see the All Mighty as an entity that is as self-centered, arrogant, vain, egotistical or easily to anger, sensitive and easily offended as the religious fundamentalists, fanatics and zealots make Him/Her out to be. Ok, let's consider the argument that it is insulting to our Creator. I can see that, but I, just like everyone else, do not know what the Heavenly Father/Mother thinks...let alone what He/She takes as an insult. But if I were a gambling person (which I am only during the Super Bowl, and that after I've asked YHWH to ensure my team covers the spread), I would wager to say that God has been less offended by the utterance/writing of the phrase "OMG" than he has been by such crimes as the Crusades, the Inquisition, the Holocaust, the Killing Fields, and the "ministries" of Pat Robertson and Jerry Falwell.
God is probably more insulted by people who profess that they converse with the Almighty and that he directs them to hate, discriminate, etc., in His/Her name. God more than likely can handle OMG! a lot more than he can all the honor killings, lies, hypocrisy and injustice that have been carried out by those who profess to be His/Her followers. God probably can stomach OMFG! a helluva lot more than he can stomach what those "Created In His Image" has done to His wonderful creation.
So how does God feel about the expression OMG!? I really don't know, but I think God doesn't really care as He/She has more important issues to deal with; and if God could speak, he would probably tell the prudes and censors of the world to get a life and maybe stop caring about the actions of others and deal with their own plank filled eyes. Of course, just as the more religious minded like to delude themselves into thinking they know what God would feel about something, that is what I think God would say.