The only thing grades seem to indicate is how easily some people get the class material compared to others. I had to study my butt off and my GPA dropped from a 3.3 before starting the nursing curriculum to a 2.98 upon graduation. However, our school did use a 6 point scale once starting the nursing classes. I can tell you my GPA is no indicate of my abilities as a nurse. Out over 35+ students only 12 of us passed the exit exam that semester and received diplomas. Then while some 3.5 students had to wait an entire semester or even a year to sit for the NCLEX, I passed the first time with the minimum number of questions. Moreover, within 3 years of graduation I was awarded as a Great 100 Nurse for my state.
What does all of this mean? Your grades do not indicate who you are or the quality of your nursing care. Unfortunately there are some smart people who get into nursing for the money. They have good grades and offer poor care. I also had a friend that started school with me and graduated 2 years after me from having to repeat nursing classes (failing or dropping). She had the passion to be a nurse and I would accept her care any day and I doubt her GPA is above a 2.2.
The only thing I think a GPA matters for is graduate school and from what I have researched so far, the low GPA can be overcome with a few extra years of experience and/or a high GRE score. I do intend to go to graduate school and will probably take a few science classes (organic chem, physics, statistics) to raise my GPA above the 3.0 mark and hope my 5-6 years of experience by then gets me in.