Am I right in saying:
1. Wireless-n is faster than previous versions of wireless and works at a longer range.
2. Wireless-n would be much more suited to serve an outside office at a range of around 20 metres.
3. You could use wireless-n for the outside office with a wireless-n dongle without needing to upgrade the other wireless devices on other computers on the same network, ie they would still work on b/g at the same time. (or is it a case that you can only operate one network, so if it's n then all the dongles have to be n)