One important factor in virtualised development environments is whether the host machine accesses the internet via. a proxy server. If it does use a proxy, then the guest machine also needs to be configured to use the proxy for accessing the internet.
Configuring the guest for a proxy makes the guest set up a little more complex, but if a lot of people use a proxy, then I can focus on making that part of the setup documentation clear. - Poll: do you access the internet via a proxy server?
