Oh, wonderful, I misunderstood the board layouts. I thought Vin took up to 5V and the 3V3 pin was the output of the regulator to use as an AREF on some of the breakout boards. If I can bypass the regulator that's perfect.
Looking closely at the image of the PCB for the ADXL345, LSM303 I see the 3V3 pin bypasses the regulator. But on the L3GD20 and BMP085 there is only a 3Vout with no bypass, correct?
Thank you for the quick response.