I have 315 million.
I do also have Max Warp Speed. I spent about $25 in diamonds and won the rest through challenging, "Getting Clean Event", unlocking girls and Daily challenges.
it took me a while to figure out the "Reset" concept. I made a post explaining how i use it (on page 75).
My current goal is around 480 million. I just reset daily... gaining, on the average, 60 Game Bouns points per day.
Right now when I unlock a skill... it goes immediately to level 30. I shut down my skills at different times to make sure I can get to the middle scene on the Twins (skill-wise). i put everything extra into films & practice.
On the weekends I just shoot for as high as i can go. So far I am about 50% of Anya's scenes. Anyway, then I reset again on Monday to gain more Game Bonus, Rinse & Repeat.
TL;DR: i have 315 million.