Once a while ago i purchased in Japan a Ricous 3G Power Bank. First i thoughts it is useless because you need an 3g modem for it to work but after a research for it i found out that it i useable as a router in bridging mode too. It has also a 5200mAh battery inside and a torch lamp. Since that day I purchased it I have this thing everytime with me while travelling around the world.
While around in several hotels I can not count anymore there are different kinds of operating modes of their offered wifi. Some offer a wpa key others have a software on their internal network where you have to sign in with username and a temporary password which is offered to you. Exactly this situation I have in the actual hotel here Ibis Northpoint in HK. These software systems are a crap. They refusing the connections you have to sign in often within surfing. But with this powerbank this is all gone. You only have to sign in once and after the connection can be used by all devices connected to the router without any problems. So it is one must have gadget for travellers…