This is a recent Chromium build (equivalent to Chrome Canary), ported to PortableApps.com format - works great on USBs, CDs, Dropbox, GDrive, .etc
This is still in its early stages, so be careful of any loss of data due to bad programming (sorry). To preserve any data, Sign it to Chromium from the wrench menu or click the sign-in button on the NTP.