On Wednesday ordered, delivered Thursday. Unwrapped - used, loaded and off we went. Display down and behold, a term of 2-2,5h in WLAN mode. Is worth the money.
Addendum 14/08/2012: Battery lasts meanwhile still whole 10 minutes; Unfortunately, not nearly as durable as the original on board, pity. Was certainly not in continuous use !!!!! PS: has been handled .....