So now to my own experience so far: Took advantage of the Amazon offer for the Pocket Edge in black, received it sooner than expected, did the initial setup/registration and immediately followed the steps above to update to Ermine.

Tried from 2 different WiFi connections, both were slow on the PE, both in Bandwidth Test and actual Update Download, despite that one of them was much faster than the speed I got on the PE (with bandwidth to spare) Never got more than 4-500kbps even though the lines had several mbps available as per other devices on the same network... anybody else experienced that or did you get higher speeds?

Attempt 1: Had to force quit after coming back from blank screen (I can understand that the powersaving would be aggressive, but less than one minute before blanking is a bit much on battery and certainly ridiculous when running of AC power... and I couldn't find a way to change it?)

Attempt 2: Got the download screen, but never finished download. Had to start over.

Attempt 3: Left unattended after download started, returned hours later to be back at desktop, but still on Dingo.

Attempt 4: Nursing it slowly through: Download went from 36% back to 7%, then some more then back again until it eventually finished, displayed a message saying it would reboot and install the update, after that back to the desktop, still on Dingo...

Attempt 5: Just finished "golden update" back to factory-default Dingo, about to start another download/install, will report back.

P.S.: Of course I made sure that my account is displaying the message that I have chosen to participate in the beta.