Bongo and I talked in IRC and a wiki page outlining our testing process so anyone can join.
Basically its going to be split up by what people have.
So initially bongo is going to install from snapshot at which point i test it on physical hard ware. The more diverse hardware the better so stay tuned for our semi-official testing process.
I dont know what the new Wiki pages says yet but I can relate the process we use that might be of help;
1. Does the snapshot work and deliver a basic working system?
2. Yes - then people who have the hardware to test the specific parts of system after that can then focus on those and report back
No - then report what the failure at 1 was and wait for a new snapshot.
Some people may take on several of the hardware specific testing tasks (dependent on time/hardware availability) others may just focus on a single hardware specific test or tests. Each tester documents their testing process. This makes testing faster and avoids the problem of a single person having to have all the hardware & importantly all of the time to test it all each time. If multiple people test the same hardware/feature thats ok too as it just strengthens the validity of the testing.
Just my 2c worth based on our processes here and our experience from doing this with the Pluto devs 'back in the day'.
All the best