Computer or mobile phone related hardware, namely, electronic memory card reader, and blank USB flash drives; hardware for creating or enhancing mobile phone functions, namely, keypads adapted for use with mobile phones; telephones, mobile phones; application hardware in the form of modules, namely, keypad modules, blank magnetic data carrier modules, audio speaker modules, audio receiver modules, audio amplifier modules and battery modules capable of being attached to a mobile phone, mobile phone cover or mobile phone case and operable via the mobile phone; application development computer software programs; hardware development computer software programs; software development kit consisting of software development tools; mobile phone covers and cases incorporating ports for attachment to application hardware modules consisting of keypad modules, blank magnetic data carrier modules, audio speaker modules, audio receiver modules, audio amplifier modules and battery modules; modular mobile phone apparatus, accessories and instruments, namely, flashlights with light emitting diodes for use in photography, laser pointers, computer controlled apparatus for testing and measuring concentrations of gas and liquids, electronic based instruments for measuring environmental parameters including humidity, mold, bacteria and air quality, temperature sensors; covers for electric outlets; computer peripheral devices including modular and detachable peripheral devices operable by a mobile phone, namely, electronic memory card readers and blank USB flash drives