edit: maybe not what most people are looking for, so I'll elaborate. To install google apps, you'll need to unlock the device and flash the gapps package. Some people don't want to go that route, so in that case there are two possibilities:
a) You can't have google apps.
b) If OnePlus gets Google CTS certified, then they can bundle the play store and other apps, signed, and bootloader locked. Oppo did so for the N1, so the N1 is a cyanogenmod phone with official google apps support.
