The battery lasted about three hours with heavy use. Standby life was about one week as well. (I still use a perma-docked n800 with 64GB storage Canola to listen to rsync'ed audiobooks.)

I would seriously avoid using the browser, especially with Flash on that device at this point. Also I believe there's only a DoS CVE for SSH.

With the OTG USB, they're still a cheaper alternative to lots of Raspberry Pi projects.