What about all those who just don't know? Romans 10:9

That if you confess with your mouth, "Jesus is Lord," and believe in your heart that God raised him from the dead, you will be saved.

John 14:6

I am the way and the truth and the life. No one comes to the Father except through me.

Combining the passages of Romans 10:9 and John 14:6 it can be interpreted that the only way to heaven is by knowing of Christ Jesus, confessing that He is Lord and believing in the Resurrection. If this is indeed the case, what of all those who have never heard of Jesus or simply don't understand who Christ really is? Without first knowing a Christ has indeed lived, died and been resurrected, how can someone make such a confession and believe in something they haven't first heard of or truly understood. I know the year we live in, and I understand how it might, to some, seem unlikely that there are actually people who have never heard anything about Christianity. But there really are people who haven't heard the whole Gospel and some who wouldn't know what the word Gospel meant. What is to be of these people? Some of "these" people rake the neighbors leaves in the fall just to be nice, call you up to watch a game when your dog dies, talk you up when you didn't think you had it in you to meet your future wife etc etc.
Not my personal position, but the Catholic position is "yes, they're OK as long as they behave", recorded in Lumen Gentium (Second Vatican Council, 1964) - emphasis is mine:


  Nor is God far distant from those who in shadows and images seek the unknown God, for it is He who gives to all men life and breath and all things, and as Saviour wills that all men be saved. Those also can attain to salvation who through no fault of their own do not know the Gospel of Christ or His Church, yet sincerely seek God and moved by grace strive by their deeds to do His will as it is known to them through the dictates of conscience. Nor does Divine Providence deny the helps necessary for salvation to those who, without blame on their part, have not yet arrived at an explicit knowledge of God and with His grace strive to live a good life. Whatever good or truth is found amongst them is looked upon by the Church as a preparation for the Gospel.