New day, new SBSetting toggle in Cydia: mDataToggle. You can use this toggle to simply Enable/Disable cellular data! This toggle uses the same functionality iOS uses in its Preferences.app! this is no dirty hack.When cellular data is disabled the 3G/E-symbol in the status bar is removed so you are always aware what the current status is.
BigBoss says that mDataToggle is available now in Cydia for free ( of course via BigBoss repo ) . Well, mDataToggle is M.I.A from Cydia at the moment. You should be able to find it in the next couple of hours though…