I haven't used Raspbmc with composite video at all, so there may be a better way to do this, however... PiCon may be able to fix the issue.
First, make sure that the Kernel of rasbmc supports NFS via
rpcinfo -p
If you see a line with vers=4 and service=nfs, then everything is fine, and you can follow this Tutorial.
Hi, sorry only just saw this, otherwise I would've responded sooner.
I'm planning to do some HD video testing of my own, pretty much my entire x264/xvid collection is sd (i tend to buy blurays of favorite movies) so I'll do a post about it in the near future.
I'm not sure whether I want troubleshooting/tech problem type submissions here, the goal was more about customizing/modding/pluggins/news/announcements. As the http://www.raspbmc.com/forum/ forums and the http://raspberrypi.stackexchange.com/ community are generally better places to get things fixed/resolved.
Either way, stay tuned for my tests on hd playback, I'll be doing usb hdd tests/ethernet tests and direct sdcard/home/ tests to see how it stacks up.
I only had a few minutes to tinker before I had to leave for work.
A little searching lead me to these:
Which both seem to follow a similar process for getting the drivers:
sudo apt-get install xboxdrv
followed by editing a configuration file. This also seems to be echoed by a few posts over in /r/raspberry_pi
I can try it out later.
Thanks for adding us to the sidebar. Along with a website we also have a weekly newsletter highlighting our best questions. You can see a preview and subscribe there.
The big difference I see between the Pi router in the link you found and the Pi DHCP server I linked to is the router config adds a NAT service to create a firewall between the Pi's internet connection and the devices that will connect to the Pi's DHCP server. Since your plan is to not have it connected to the internet, you don't need to install the NAT server. You only need the DHCP server and a few folder permissions. Beyond that, either config should work fine with Raspbmc.
If you are concerned that setting up and installing the DHCP service might bork your current setup, backup your SD card.
I use Usbit (USB Image Tool) to load and backup SD images. It works much nicer and is more stable than Win32DiskImager. Once you have your SD card backed up (and put a second copy on a different drive), you can change settings freely without much concern about messing it up. If you do mess it up, wipe the SD card, reload the working image, and try again.
Can't say on the slow transfer speed. Could be the AP software on the phone, could be the phone's Wi-Fi adapter, or it could be the Wi-Fi adapter on the Pi. Try connecting a PC or laptop to the phone's AP and transfer a file to your phone. That should tell you where the problem is. If the transfer speed is the same, it's the AP software or Wi-Fi adapter in the phone. If it's faster, it's the Wi-Fi adapter on the Pi or the Pi itself.
I tried this a while ago and couldn't get it to work because the changes I needed to make with Apt broke everything else.
It's actually quite easy to set up Openvpn on Debian, and Private Internet Access works fine on the RPi, but I think Raspmc makes it much harder if not impossible.
Hopefully I'm wrong and someone will provide instructions.
I'm not aware of any settings that would allow a 360 controller to replace a mouse or keyboard.
If you are looking for a small handheld keyboard and mouse combo for use as a remote in the living room, I use one of these: http://www.amazon.com/Rii-I8-Wireless-Touchpad-Keyboard/dp/B00B9996LA
If you are running XBMC/Kodi, you can enable the web interface. This allows you to use any device on your home network with a web browser as a remote control.