OK here is the deal: You have a wired connection to the Internet e.g. in a hotel room but your fancy new smart phone, iPad etc. just has WLAN connection. Until now you had three possibilities:
- Use your 3G connection
- Use Bluetooth or crappy wired connections
- Stay offline, go the hotel bar and get drunk you damn geek!
Well since all modern notebooks do have a WLAN card built in, why not use this card as an access point? The average Linux guy is now really LOLing but for us Windows users this just was a dream. Now Microsoft implemented some nice command line tools to turn your WLAN card into an access point. You can find the information here: