[Q] Some newbe questions

---

I have a few questions and thought I'd post them for you Android Ninjas to laugh at. Once you get though recognizing my ignorance though, I'd love some education.

1. Why does my phone give me errors that it can't move apps to my SD card (says it is full) when I have 7GB free on it?
2. I tried installing an app and it told me that there wasn't enough room in SYS to unpack the files. Is this related to #1? How can I give more space to SYS?
3. Do widgets or live wallpaper consume CPU or battery when the screen is off or the phone is locked? In other words, will a sleeping phone with lots of widgets use more power than one with just static shortcuts on the screen?
4. Is the Android memory management good enough that you don't need to reboot the device every day or so in order to clear everything out and get optimum performance?
5. I've played with the rooted stock ROM for the Inspire, Revolution 4, and now CM7. I see the differences between the UI interface. But what is the purpose/benefit in changing kernals?
6. Every evening at 7pm, I get a blank SMS message notification with no content and no sender name/number. When I click to open it, it launches GO SMS, but there is no corresponding message in my list of messages. What is this and how do I get it to stop?

3. yes, the more, the more resources and cpu used. livewallpaper uses more than static wallpaper. more widgets, especially ones that update and use data, use resource more than no widgets, etc.

4. android OS is rock solid. i go weeks without reboot. i just went 540 hours on one boot, and that's just the best one that i paid attention to. it goes longer but after 22 days it loses its fun of keeping track.

5. differetn kernels are for different purposes. some are over clocked for performance. some are under volted for longer battery life. its just ways to tweak the phone to get what you want out of it.