Kinky. Notice how he says you must make sure you have internet? Anyone wanna bet something maliciously deleting your data isn't simultaneously sending it online somewhere?

(If I was a risk taker I'd run Backupmenu on my entire device, save those backup archive files elsewhere off-device, plug it up to a WiFi access point which fakes internet throughput, and then run the distributed file through strace. Then put the backup archives and a kernel image back on the device, reflash kernel, and unpack all the backups. That way if the son-of-a-***** deletes everything, the backups hopefully restore it all. I actually like my N900 too much to do that, but still. Someone willing to reflash probably could make it happen.)

At any rate, thanks for the warning.