Yes, absolutely. My must haves: http://intelliborn.com/intelliscreen.html http://intelliborn.com/intelliscreen.html http://stereopsis.com/flux/ios.html http://

Yes, absolutely. My must haves: http://intelliborn.com/intelliscreen.html http://intelliborn.com/intelliscreen.html http://stereopsis.com/flux/ios.html http://stereopsis.com/flux/ios.html http://www.ijailbreak.com/cydia/activator-1-5-8-cydia-tweak/ http://www.ijailbreak.com/cydia/activator-1-5-8-cydia-tweak/ http://igotya.com/ http://igotya.com/ http://www.idownloadblog.com/2011/01/17/fakeclockup-makes-your-iphone-seem-faster/ http://www.idownloadblog.com/2011/01/17/fakeclockup-makes-yo... http://www.makeuseof.com/tag/install-sbsettings-toggles-life-easier-cydia-tweak/ http://www.makeuseof.com/tag/install-sbsettings-toggles-life... You can also override pretty much anything, e.g. turn on tethering without paying extra for data you already paid for etc. With regard to data stealing / backdoors: It is the same as installing apps on a computer. You lose the walled garden of Apple but this is only the same as any other computer system has been since computers existed.