(coming late to this thread ...) arm-powered chromeboxes don't exist (yet?), so perhaps an arm-powered chromebook? (chromeboxes tend to be more upgradeable th

(coming late to this thread ...) arm-powered chromeboxes don't exist (yet?), so perhaps an arm-powered chromebook? (chromeboxes tend to be more upgradeable than their chromebook counterparts) Linux OS, kept up to date for you (with google backporting security fixes to their kernel, and of course - updating their browser), running on arm. Can be used as a simple browser-only machine, or if you are decently comfortable with linux, you can unlock its potential and use it as a fully-fledged linux machine. Your choice. If you want to avoid being part of the google foodchain, you could try dual-booting into another arm distro of your choice. Best I can think of, at the moment ...