New menu options in the Settings app of the iPad’s version of iOS 4.2 beta 2 suggest that Apple may begin to allow iPad users to tether other devices to its 3G data connection, similar to the tethering feature currently offered on the iPhone. 9 to 5 Mac reports that there is now a section for Internet Tethering within the Cellular Data>APN Settings submenu of the Settings application. The section has spaces for the APN, username, and password;…