Not bad. I usually use a SD card to store my data on my laptop; this looks like a step up from that.
Can you use that with your own apps, or is it just their set?
I suppose you can wedge your own apps in there, but the point is a standard drop-and-use no-installation-needed packaging of popular freeware/OSS apps. As my laptop slowly croaks, I’m drifting all my Windows life onto PortableApps.
PortableApps.com uses mostly opensource apps.
There are ways to install your own apps that have commercial user agreements to work with the program, however at that point you would do better using a customized TinyXP rev10 minimum install on portable media. You can encrypt the entire portable media at 1024 bit encryption, and you can install a piece of software on the OS that overwrites the RAM with a randomized scrub upon each shutdown.
Add a vanilla install of a Linux OS on to the laptop with some “mugging’s wallet” false front and one of the more esoteric Linux drive formats, and you should be set as long as the TSA doesn’t find your portable media.
The other option involves only bringing factory fresh or IT dept fresh OS installed laptops on airplanes, and using 2048 bit encrypted Citrix services to do remote desktop usage with all files being downloaded on portable media on business trips. The portable media must be destroyed before entering the airport for the return flight. This is being used by many Fortune 500 companies when travelling to China and other east Asian countries now.