Kaido, what is the USB M.2 reader for?
I bought a 128gb & 256gb M.2 drive; I'd like to test cloning & restoring the OS (ex. clone the stock install on the included 32gb drive (I typically use a USB driver reader to zap over Macrium clones). I use a lot of mini computers in business environments, so ideally I have tools like this to do quick restores if needed (virus, drive failure, etc.). The Baytrail-T stuff has integrated SSD's & 32-bit UEFI's, which makes restoring them quickly (or installing a custom OS build) difficult/impossible, whereas with the HP Stream Mini, it uses a removable M.2 drive. However, it appears there are some issues with doing clones, so I wanted to test it out.
For example, I just upgraded my Mini to 8.1 Pro using the Pro Pack upgrade and now I have 7.73 gigs remaining (booted up the computer, ran updates, removed bloatware, installed the Pro Pack key...that's not much room for data leftover). I'll also be trying OEM installs like others have done (ex. BarkingGhostar) to see what works the best. I mean, the concept is great for businesses:
$180 HP Stream Mini (45w max PSU, although tests are showing ~17 watts actual)
$185 Office 2013 for Business
$30 4GB RAM stick
$100 Pro Pack upgrade
$70 128gb M.2 drive
$565 for a tiny, low-power computer running Windows 8.1 Pro with 6 gigs of RAM, 128gb SSD, Office 2013, keyboard, and mouse is a pretty great deal, especially since it's capable of running dual monitors. The Celeron isn't fast, but for your typical IE/Office usage in an office environment, it's fine. Boots up quick, sips power, quiet. There are lots of alternatives (Baytrail-T systems, Zotac, NUC, BRIX, etc.) but this represents a pretty good value since you can upgrade the RAM & SSD, and because it has dual monitor support, plus 4 USB 3.0 ports & actual Gigabit LAN.