Worrisome things about Android discussion

[TheBundo]

I read in the general discussion that all Android devices have the GPS on ALL the time. Aside from the privacy problem, isn't that a battery killer? I also read that you HAVE to sync your calendar with Google, and HAVE to have a Google account? WTF????

Aside from these concerns, feel free to add any of your own, and correct me if I'm wrong about any of my concerns.