Don't Need to do Any Apps for creating a wifi hotspot try this its very helpful, and its not only for Note 2 its for S3 and S4 as well ..
http://howik.com/Turn_your_Samsung_Galaxy_Note_II,_s3_or_s4_into_a_wifi_hotspot_to_share_internet_with_your_laptop_wirelessly
http://howik.com/Turn_your_Samsung_Galaxy_Note_II,_s3_or_s4_into_a_wifi_hotspot_to_share_internet_with_your_laptop_wirelessly
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