Handheld mobile digital electronic devices comprising a full featured tablet computer, electronic book reader, digital audio and video player, electronic personal organizer, personal digital assistant, electronic calendar, and global positioning system (GPS) device, and capable of providing access to the Internet and sending, receiving, and storing messages and other data; computer game and electronic game programs; parts and fittings for mobile electronic devices, namely, tablet computers, electronic book readers, digital audio and video players, electronic personal organizers, personal digital assistants, electronic calendars, and global positioning system (GPS) devices; electronic testing apparatus for testing the operability of mobile electronic devices, namely, tablet computers, electronic book readers, digital audio and video players, electronic personal organizers, personal digital assistants, electronic calendars, and global positioning system (GPS) devices; batteries; rechargeable electric batteries; battery chargers; chargers for electric batteries; headphones; stereo headphones; in-ear headphones; stereo audio speakers; audio speakers; audio speakers for home; digital music and/or video players; radios; video cameras; audio, video, and digital sound mixers; radio transmitters; parts and fittings for all the aforesaid goods; bags and cases adapted or shaped to contain tablet computer devices; bags and cases adapted or shaped to contain MP3 players, hand held computers, tablet computers, personal digital assistants, global positioning system (GPS) devices, electronic organizers and electronic notepads; USB (universal serial bus) hardware; computer stylus