Technology

Firstly, you'll need to use your web browser's network debug panel to intercept a login request to the access points web GUI.
You'll want to find the 'Basic admin' cookie.

That done, just replace both 'x.y.z.w' with your devices IP address, and put the key in 'PUT YOUR KEY HERE'.

The script requires the standard 'curl' command, and also the 'jq' command to understand the output. If you don't have them. they'll be in your standard repositories.

This keeps all your data and most settings intact, so you can use your phone as you do it (though it will spend a lot of time 'optimizing apps') or stop and go out :-)
You don't need to unlock the boot loader, so the camera quality stays awesome, and you get all the bundled apps, along with the Google ones.

Use the built in update app to go from 4.4 to 5.

Then use the settings, about, update menu to update to 5.1 latest.

Install Kingroot (I used 4.8) and let it root your phone.

To to find your IP :
alt-f2, lxterminal
ifconfig

SSH in from another machine, and follow along from https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1492441/comments/7

Quick note on these PowerLine devices.

They don't need any tools to manage them, as they have a sufficient web interface.

BUT - these devices are terrible network citizens.

I got a Dell laptop a few years ago, and while scouting around for it's replacement I noticed the Ubuntu Linux folks are still proud to say their stuff not only runs on Dell kit still, but that it's available to purchase and have supported direct from Dell:

"purchase Ubuntu on Dell"
http://www.ubuntu.com/dell

For reason's best known to some brain dead marketing monkey, I got given a USB device that only works correctly on Windows. Have you ever seen a ghost in the machine open the run box, type in a web address and launch a browser with out asking ? Neither had I, and fortunately Linux and MacOS users don't have that problem. But how to get your free credit from the AWS Summit 2011 ?
I found a way.

Keynote
Mike Jones, Adobe
Mike is an evangelists for games at Adobe. A shift of focus I think Adobe is still making. Mike shows there are a massive number of devices, and you can target these all with HTML5 but Flash has a unique opportunity to innovate on all of these platforms. Mike has a nice time line graph to back this up over the last 15 years.

Keynote
Mark Drew and Gert Franz of Railo
It's up to you to be proud of CFML, don't apologise for it ! Tweet it, blog it ! You cant convert .Net, PHP users, only tempt them.
But likewise, we should try other stuff and tell everyone the 10% you like about Scala or whatever. You might end up with them in ColdFusion (or Railo !). Incentivise your colleagues, especially the 9 to 5'ers.
Price and performance is not an issue any more for ColdFusion, been around for ages but updated every single year.

Keynote (Adobe)
Terry Ryan
Terry started off by saying that 5 years ago, we built websites with 2 simple tiers. Now have a web application, and tablet, and mobile, and each in many versions.

The next article in my series on user experience design is now up on the corporate blog : What users really want